408365604 has 96 divisors (see below), whose sum is σ = 1099284480. Its totient is φ = 130960800.

The previous prime is 408365597. The next prime is 408365647. The reversal of 408365604 is 406563804.

408365604 is a `hidden beast` number, since 40 + 8 + 3 + 6 + 5 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 947269 + ... + 947699.

It is an arithmetic number, because the mean of its divisors is an integer number (11450880).

Almost surely, 2^408365604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408365604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549642240).

408365604 is an abundant number, since it is smaller than the sum of its proper divisors (690918876).

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

408365604 is a wasteful number, since it uses less digits than its factorization.

408365604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 408365604 is about 20208.0578977793. The cubic root of 408365604 is about 741.9074263993.

The spelling of 408365604 in words is "four hundred eight million, three hundred sixty-five thousand, six hundred four".