404352442 has 12 divisors (see below), whose sum is σ = 656774190. Its totient is φ = 186624048.

The previous prime is 404352427. The next prime is 404352491. The reversal of 404352442 is 244253404.

It can be written as a sum of positive squares in 3 ways, for example, as 290054961 + 114297481 = 17031^2 + 10691^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 404352442.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 597817 + ... + 598492.

Almost surely, 2^404352442 is an apocalyptic number.

404352442 is a deficient number, since it is larger than the sum of its proper divisors (252421748).

404352442 is a wasteful number, since it uses less digits than its factorization.

404352442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196337 (or 1196324 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 404352442 is about 20108.5166533984. The cubic root of 404352442 is about 739.4690871693.

The spelling of 404352442 in words is "four hundred four million, three hundred fifty-two thousand, four hundred forty-two".