40155084 has 18 divisors (see below), whose sum is σ = 101503220. Its totient is φ = 13385016.

The previous prime is 40155047. The next prime is 40155097. The reversal of 40155084 is 48055104.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×40155084² = 3224861542094112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557674 + ... + 557745.

Almost surely, 2^40155084 is an apocalyptic number.

It is an amenable number.

40155084 is an abundant number, since it is smaller than the sum of its proper divisors (61348136).

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

40155084 is a wasteful number, since it uses less digits than its factorization.

40155084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115429 (or 1115424 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 40155084 is about 6336.8039262707. The cubic root of 40155084 is about 342.4366025410.

The spelling of 40155084 in words is "forty million, one hundred fifty-five thousand, eighty-four".