404624821492 has 12 divisors (see below), whose sum is σ = 709241081220. Its totient is φ = 201984512576.

The previous prime is 404624821487. The next prime is 404624821543. The reversal of 404624821492 is 294128426404.

It can be written as a sum of positive squares in 2 ways, for example, as 3687647076 + 400937174416 = 60726^2 + 633196^2 .

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, 81971767 + ... + 81976702.

It is an arithmetic number, because the mean of its divisors is an integer number (59103423435).

Almost surely, 2^404624821492 is an apocalyptic number.

It is an amenable number.

404624821492 is a deficient number, since it is larger than the sum of its proper divisors (304616259728).

404624821492 is a wasteful number, since it uses less digits than its factorization.

404624821492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163949090 (or 163949088 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 404624821492 in words is "four hundred four billion, six hundred twenty-four million, eight hundred twenty-one thousand, four hundred ninety-two".