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40401054 = 2322244503
BaseRepresentation
bin1001101000011…
…1100010011110
32211000120211100
42122013202132
540320313204
64001533530
71000255221
oct232074236
984016740
1040401054
1120894a01
12116442a6
1384a7265
1455195b8
153830a39
hex268789e

40401054 has 12 divisors (see below), whose sum is σ = 87535656. Its totient is φ = 13467012.

The previous prime is 40401043. The next prime is 40401071. The reversal of 40401054 is 45010404.

40401054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2244503 = 40401054 / (4 + 0 + 4 + 0 + 1 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1122234 + ... + 1122269.

It is an arithmetic number, because the mean of its divisors is an integer number (7294638).

Almost surely, 240401054 is an apocalyptic number.

40401054 is an abundant number, since it is smaller than the sum of its proper divisors (47134602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40401054 is a wasteful number, since it uses less digits than its factorization.

40401054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244511 (or 2244508 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40401054 is about 6356.1823447727. The cubic root of 40401054 is about 343.1343782958.

Adding to 40401054 its reverse (45010404), we get a palindrome (85411458).

The spelling of 40401054 in words is "forty million, four hundred one thousand, fifty-four".

Divisors: 1 2 3 6 9 18 2244503 4489006 6733509 13467018 20200527 40401054