16604452 has 6 divisors (see below), whose sum is σ = 29057798. Its totient is φ = 8302224.

The previous prime is 16604431. The next prime is 16604473. The reversal of 16604452 is 25440661.

It is an interprime number because it is at equal distance from previous prime (16604431) and next prime (16604473).

It can be written as a sum of positive squares in only one way, i.e., 15178816 + 1425636 = 3896^2 + 1194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16604452.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2075553 + ... + 2075560.

Almost surely, 2^16604452 is an apocalyptic number.

It is an amenable number.

16604452 is a deficient number, since it is larger than the sum of its proper divisors (12453346).

16604452 is a wasteful number, since it uses less digits than its factorization.

16604452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151117 (or 4151115 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 16604452 is about 4074.8560710778. The cubic root of 16604452 is about 255.1182432527.

The spelling of 16604452 in words is "sixteen million, six hundred four thousand, four hundred fifty-two".