40163616 has 36 divisors (see below), whose sum is σ = 114216102. Its totient is φ = 13387776.

The previous prime is 40163609. The next prime is 40163621. The reversal of 40163616 is 61636104.

40163616 is a `hidden beast` number, since 40 + 1 + 6 + 3 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 1971216 = 6180^2 + 1404^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×40163616² = 3226232100390912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40163616.

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, 69441 + ... + 70016.

Almost surely, 2^40163616 is an apocalyptic number.

It is an amenable number.

40163616 is an abundant number, since it is smaller than the sum of its proper divisors (74052486).

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

40163616 is a wasteful number, since it uses less digits than its factorization.

40163616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139473 (or 139462 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40163616 is about 6337.4771005503. The cubic root of 40163616 is about 342.4608540338.

The spelling of 40163616 in words is "forty million, one hundred sixty-three thousand, six hundred sixteen".