604402664 has 8 divisors (see below), whose sum is σ = 1133255010. Its totient is φ = 302201328.

The previous prime is 604402637. The next prime is 604402681. The reversal of 604402664 is 466204406.

It can be written as a sum of positive squares in only one way, i.e., 587674564 + 16728100 = 24242^2 + 4090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 604402664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37775159 + ... + 37775174.

Almost surely, 2^604402664 is an apocalyptic number.

It is an amenable number.

604402664 is a deficient number, since it is larger than the sum of its proper divisors (528852346).

604402664 is a wasteful number, since it uses less digits than its factorization.

604402664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75550339 (or 75550335 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 604402664 is about 24584.6021729049. The cubic root of 604402664 is about 845.4906124696.

The spelling of 604402664 in words is "six hundred four million, four hundred two thousand, six hundred sixty-four".