40155164 has 48 divisors (see below), whose sum is σ = 82790400. Its totient is φ = 16687296.

The previous prime is 40155133. The next prime is 40155197. The reversal of 40155164 is 46155104.

It is a super-2 number, since 2×40155164² = 3224874391733792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179957 + ... + 180179.

It is an arithmetic number, because the mean of its divisors is an integer number (1724800).

Almost surely, 2^40155164 is an apocalyptic number.

It is an amenable number.

40155164 is an abundant number, since it is smaller than the sum of its proper divisors (42635236).

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

40155164 is a wasteful number, since it uses less digits than its factorization.

40155164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 40155164 is about 6336.8102385980. The cubic root of 40155164 is about 342.4368299503.

The spelling of 40155164 in words is "forty million, one hundred fifty-five thousand, one hundred sixty-four".