40112931 has 8 divisors (see below), whose sum is σ = 53601280. Its totient is φ = 26683272.

The previous prime is 40112903. The next prime is 40112939. The reversal of 40112931 is 13921104.

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

It is not a de Polignac number, because 40112931 - 2¹¹ = 40110883 is a prime.

It is a super-2 number, since 2×40112931² = 3218094466821522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40112898 and 40112907.

It is not an unprimeable number, because it can be changed into a prime (40112939) 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, 13051 + ... + 15828.

It is an arithmetic number, because the mean of its divisors is an integer number (6700160).

Almost surely, 2^40112931 is an apocalyptic number.

40112931 is a deficient number, since it is larger than the sum of its proper divisors (13488349).

40112931 is a wasteful number, since it uses less digits than its factorization.

40112931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29345.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 40112931 is about 6333.4770071423. The cubic root of 40112931 is about 342.3167357430.

The spelling of 40112931 in words is "forty million, one hundred twelve thousand, nine hundred thirty-one".