40631156 has 48 divisors (see below), whose sum is σ = 79761024. Its totient is φ = 18011136.

The previous prime is 40631137. The next prime is 40631183. The reversal of 40631156 is 65113604.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 129656 + ... + 129968.

It is an arithmetic number, because the mean of its divisors is an integer number (1661688).

Almost surely, 2^40631156 is an apocalyptic number.

40631156 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40631156 is a deficient number, since it is larger than the sum of its proper divisors (39129868).

40631156 is a wasteful number, since it uses less digits than its factorization.

40631156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40631156 is about 6374.2572900692. The cubic root of 40631156 is about 343.7845798381.

The spelling of 40631156 in words is "forty million, six hundred thirty-one thousand, one hundred fifty-six".