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40414521 = 371924501
BaseRepresentation
bin1001101000101…
…0110100111001
32211001021022010
42122022310321
540321231041
64002120133
71000342410
oct232126471
984037263
1040414521
11208a4034
1211650049
1384b0424
145520477
153834a16
hex268ad39

40414521 has 8 divisors (see below), whose sum is σ = 61584064. Its totient is φ = 23094000.

The previous prime is 40414511. The next prime is 40414523. The reversal of 40414521 is 12541404.

It is a happy number.

40414521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40414521 - 25 = 40414489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1924501 = 40414521 / (4 + 0 + 4 + 1 + 4 + 5 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40414523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962230 + ... + 962271.

It is an arithmetic number, because the mean of its divisors is an integer number (7698008).

Almost surely, 240414521 is an apocalyptic number.

It is an amenable number.

40414521 is a deficient number, since it is larger than the sum of its proper divisors (21169543).

40414521 is a wasteful number, since it uses less digits than its factorization.

40414521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924511.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40414521 is about 6357.2416188155. The cubic root of 40414521 is about 343.1725000515.

Adding to 40414521 its reverse (12541404), we get a palindrome (52955925).

The spelling of 40414521 in words is "forty million, four hundred fourteen thousand, five hundred twenty-one".

Divisors: 1 3 7 21 1924501 5773503 13471507 40414521