663342404 has 12 divisors (see below), whose sum is σ = 1200878700. Its totient is φ = 320234208.

The previous prime is 663342389. The next prime is 663342413. The reversal of 663342404 is 404243366.

It can be written as a sum of positive squares in 2 ways, for example, as 287370304 + 375972100 = 16952^2 + 19390^2 .

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, 2859119 + ... + 2859350.

It is an arithmetic number, because the mean of its divisors is an integer number (100073225).

Almost surely, 2^663342404 is an apocalyptic number.

It is an amenable number.

663342404 is a deficient number, since it is larger than the sum of its proper divisors (537536296).

663342404 is a wasteful number, since it uses less digits than its factorization.

663342404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718502 (or 5718500 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 663342404 is about 25755.4344556639. The cubic root of 663342404 is about 872.1260391419.

The spelling of 663342404 in words is "six hundred sixty-three million, three hundred forty-two thousand, four hundred four".