40155616 has 12 divisors (see below), whose sum is σ = 79056432. Its totient is φ = 20077792.

The previous prime is 40155601. The next prime is 40155617. The reversal of 40155616 is 61655104.

It is a super-2 number, since 2×40155616² = 3224946992678912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40155617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627400 + ... + 627463.

It is an arithmetic number, because the mean of its divisors is an integer number (6588036).

Almost surely, 2^40155616 is an apocalyptic number.

It is an amenable number.

40155616 is a deficient number, since it is larger than the sum of its proper divisors (38900816).

40155616 is a wasteful number, since it uses less digits than its factorization.

40155616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254873 (or 1254865 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 40155616 is about 6336.8459031288. The cubic root of 40155616 is about 342.4381148067.

The spelling of 40155616 in words is "forty million, one hundred fifty-five thousand, six hundred sixteen".