36640408 has 16 divisors (see below), whose sum is σ = 78515280. Its totient is φ = 15703008.

The previous prime is 36640399. The next prime is 36640447. The reversal of 36640408 is 80404663.

It is a self number, because there is not a number n which added to its sum of digits gives 36640408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327091 + ... + 327202.

It is an arithmetic number, because the mean of its divisors is an integer number (4907205).

Almost surely, 2^36640408 is an apocalyptic number.

It is an amenable number.

36640408 is an abundant number, since it is smaller than the sum of its proper divisors (41874872).

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

36640408 is a wasteful number, since it uses less digits than its factorization.

36640408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654306 (or 654302 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 36640408 is about 6053.1320818234. The cubic root of 36640408 is about 332.1391732762.

The spelling of 36640408 in words is "thirty-six million, six hundred forty thousand, four hundred eight".