40156012 has 12 divisors (see below), whose sum is σ = 75678736. Its totient is φ = 18533520.

The previous prime is 40155991. The next prime is 40156013. The reversal of 40156012 is 21065104.

It is a super-2 number, since 2×40156012² = 3225010599488288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40156013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386064 + ... + 386167.

Almost surely, 2^40156012 is an apocalyptic number.

It is an amenable number.

40156012 is a deficient number, since it is larger than the sum of its proper divisors (35522724).

40156012 is a wasteful number, since it uses less digits than its factorization.

40156012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772248 (or 772246 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40156012 is about 6336.8771488802. The cubic root of 40156012 is about 342.4392404695.

The spelling of 40156012 in words is "forty million, one hundred fifty-six thousand, twelve".