40304931 has 8 divisors (see below), whose sum is σ = 54420480. Its totient is φ = 26529672.

The previous prime is 40304923. The next prime is 40304933. The reversal of 40304931 is 13940304.

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

It is not a de Polignac number, because 40304931 - 2³ = 40304923 is a prime.

It is a super-2 number, since 2×40304931² = 3248974925829522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40304933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84795 + ... + 85268.

It is an arithmetic number, because the mean of its divisors is an integer number (6802560).

Almost surely, 2^40304931 is an apocalyptic number.

40304931 is a deficient number, since it is larger than the sum of its proper divisors (14115549).

40304931 is a wasteful number, since it uses less digits than its factorization.

40304931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170145.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 40304931 is about 6348.6164634509. The cubic root of 40304931 is about 342.8620314531.

The spelling of 40304931 in words is "forty million, three hundred four thousand, nine hundred thirty-one".