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40873469 = 7133114489
BaseRepresentation
bin1001101111101…
…0110111111101
32211220120212012
42123322313331
540430422334
64020021005
71004263430
oct233726775
984816765
1040873469
112108792a
1211831765
1386112b0
1455dd817
1538c59ce
hex26fadfd

40873469 has 16 divisors (see below), whose sum is σ = 51932160. Its totient is φ = 31294080.

The previous prime is 40873453. The next prime is 40873471. The reversal of 40873469 is 96437804.

It is a cyclic number.

It is not a de Polignac number, because 40873469 - 24 = 40873453 is a prime.

It is a super-2 number, since 2×408734692 = 3341280936187922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40873429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4424 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (3245760).

It is the magic constant of a 434 × 434 magic square.

Almost surely, 240873469 is an apocalyptic number.

It is an amenable number.

40873469 is a deficient number, since it is larger than the sum of its proper divisors (11058691).

40873469 is a wasteful number, since it uses less digits than its factorization.

40873469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14540.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 40873469 is about 6393.2361914761. The cubic root of 40873469 is about 344.4666378770.

The spelling of 40873469 in words is "forty million, eight hundred seventy-three thousand, four hundred sixty-nine".

Divisors: 1 7 13 31 91 217 403 2821 14489 101423 188357 449159 1318499 3144113 5839067 40873469