404309452 has 12 divisors (see below), whose sum is σ = 708419656. Its totient is φ = 201903840.

The previous prime is 404309443. The next prime is 404309489. The reversal of 404309452 is 254903404.

It is a happy number.

It is a super-2 number, since 2×404309452² = 326932265953080608, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 59073 + ... + 65560.

Almost surely, 2^404309452 is an apocalyptic number.

It is an amenable number.

404309452 is a deficient number, since it is larger than the sum of its proper divisors (304110204).

404309452 is a wasteful number, since it uses less digits than its factorization.

404309452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125448 (or 125446 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 404309452 is about 20107.4476749288. The cubic root of 404309452 is about 739.4428799142.

The spelling of 404309452 in words is "four hundred four million, three hundred nine thousand, four hundred fifty-two".