40156930 has 16 divisors (see below), whose sum is σ = 78853824. Its totient is φ = 14602480.

The previous prime is 40156913. The next prime is 40156939. The reversal of 40156930 is 3965104.

It is a super-2 number, since 2×40156930² = 3225158054049800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40156939) 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, 182422 + ... + 182641.

It is an arithmetic number, because the mean of its divisors is an integer number (4928364).

Almost surely, 2^40156930 is an apocalyptic number.

40156930 is a deficient number, since it is larger than the sum of its proper divisors (38696894).

40156930 is a wasteful number, since it uses less digits than its factorization.

40156930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365081.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 40156930 is about 6336.9495816205. The cubic root of 40156930 is about 342.4418499321.

The spelling of 40156930 in words is "forty million, one hundred fifty-six thousand, nine hundred thirty".