404461644 has 24 divisors (see below), whose sum is σ = 950537280. Its totient is φ = 133850064.

The previous prime is 404461633. The next prime is 404461667. The reversal of 404461644 is 446164404.

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, 119574 + ... + 122909.

It is an arithmetic number, because the mean of its divisors is an integer number (39605720).

Almost surely, 2^404461644 is an apocalyptic number.

It is an amenable number.

404461644 is an abundant number, since it is smaller than the sum of its proper divisors (546075636).

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

404461644 is a wasteful number, since it uses less digits than its factorization.

404461644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242629 (or 242627 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 404461644 is about 20111.2317872377. The cubic root of 404461644 is about 739.5356497572.

The spelling of 404461644 in words is "four hundred four million, four hundred sixty-one thousand, six hundred forty-four".