40711931 has 6 divisors (see below), whose sum is σ = 44084700. Its totient is φ = 37580088.

The previous prime is 40711921. The next prime is 40711933. The reversal of 40711931 is 13911704.

It is a de Polignac number, because none of the positive numbers 2^k-40711931 is a prime.

It is a super-2 number, since 2×40711931² = 3314922651497522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40711931.

It is not an unprimeable number, because it can be changed into a prime (40711933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120281 + ... + 120618.

It is an arithmetic number, because the mean of its divisors is an integer number (7347450).

Almost surely, 2^40711931 is an apocalyptic number.

40711931 is a deficient number, since it is larger than the sum of its proper divisors (3372769).

40711931 is a wasteful number, since it uses less digits than its factorization.

40711931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240925 (or 240912 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 40711931 is about 6380.5901764649. The cubic root of 40711931 is about 344.0122443587.

The spelling of 40711931 in words is "forty million, seven hundred eleven thousand, nine hundred thirty-one".