409561002 has 16 divisors (see below), whose sum is σ = 910135680. Its totient is φ = 136520316.

The previous prime is 409560971. The next prime is 409561021. The reversal of 409561002 is 200165904.

409561002 is a `hidden beast` number, since 40 + 9 + 5 + 610 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3792178 + ... + 3792285.

It is an arithmetic number, because the mean of its divisors is an integer number (56883480).

Almost surely, 2^409561002 is an apocalyptic number.

409561002 is an abundant number, since it is smaller than the sum of its proper divisors (500574678).

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

409561002 is a wasteful number, since it uses less digits than its factorization.

409561002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584474 (or 7584468 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 409561002 is about 20237.6135450799. The cubic root of 409561002 is about 742.6306432704.

The spelling of 409561002 in words is "four hundred nine million, five hundred sixty-one thousand, two".