404360406 has 24 divisors (see below), whose sum is σ = 878440680. Its totient is φ = 134428896.

The previous prime is 404360393. The next prime is 404360417. The reversal of 404360406 is 604063404.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 404360406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22815 + ... + 36458.

It is an arithmetic number, because the mean of its divisors is an integer number (36601695).

Almost surely, 2^404360406 is an apocalyptic number.

404360406 is an abundant number, since it is smaller than the sum of its proper divisors (474080274).

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

404360406 is a wasteful number, since it uses less digits than its factorization.

404360406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59660 (or 59657 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 404360406 is about 20108.7146779698. The cubic root of 404360406 is about 739.4739419218.

The spelling of 404360406 in words is "four hundred four million, three hundred sixty thousand, four hundred six".