40575931 has 16 divisors (see below), whose sum is σ = 45969408. Its totient is φ = 35481600.

The previous prime is 40575929. The next prime is 40575949. The reversal of 40575931 is 13957504.

It is not a de Polignac number, because 40575931 - 2¹ = 40575929 is a prime.

It is a super-2 number, since 2×40575931² = 3292812353033522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40575331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87406 + ... + 87868.

It is an arithmetic number, because the mean of its divisors is an integer number (2873088).

Almost surely, 2^40575931 is an apocalyptic number.

40575931 is a deficient number, since it is larger than the sum of its proper divisors (5393477).

40575931 is a wasteful number, since it uses less digits than its factorization.

40575931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 40575931 is about 6369.9239398913. The cubic root of 40575931 is about 343.6287543308.

The spelling of 40575931 in words is "forty million, five hundred seventy-five thousand, nine hundred thirty-one".