40156146 has 24 divisors (see below), whose sum is σ = 87179664. Its totient is φ = 13358520.

The previous prime is 40156141. The next prime is 40156163. The reversal of 40156146 is 64165104.

40156146 is a `hidden beast` number, since 40 + 1 + 5 + 614 + 6 = 666.

It is a super-2 number, since 2×40156146² = 3225032123146632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40156141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8325 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (3632486).

Almost surely, 2^40156146 is an apocalyptic number.

40156146 is an abundant number, since it is smaller than the sum of its proper divisors (47023518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40156146 is a wasteful number, since it uses less digits than its factorization.

40156146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40156146 is about 6336.8877219026. The cubic root of 40156146 is about 342.4396213739.

The spelling of 40156146 in words is "forty million, one hundred fifty-six thousand, one hundred forty-six".