404251542 has 24 divisors (see below), whose sum is σ = 913960944. Its totient is φ = 128891664.

The previous prime is 404251537. The next prime is 404251567. The reversal of 404251542 is 245152404.

404251542 is a `hidden beast` number, since 404 + 251 + 5 + 4 + 2 = 666.

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, 487813 + ... + 488640.

It is an arithmetic number, because the mean of its divisors is an integer number (38081706).

Almost surely, 2^404251542 is an apocalyptic number.

404251542 is an abundant number, since it is smaller than the sum of its proper divisors (509709402).

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

404251542 is a wasteful number, since it uses less digits than its factorization.

404251542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976484 (or 976481 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 404251542 is about 20106.0076096673. The cubic root of 404251542 is about 739.4075742991.

The spelling of 404251542 in words is "four hundred four million, two hundred fifty-one thousand, five hundred forty-two".