16425604 has 36 divisors (see below), whose sum is σ = 32914084. Its totient is φ = 7128576.

The previous prime is 16425559. The next prime is 16425623. The reversal of 16425604 is 40652461.

It can be written as a sum of positive squares in 6 ways, for example, as 2883204 + 13542400 = 1698^2 + 3680^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14482 + ... + 15574.

Almost surely, 2^16425604 is an apocalyptic number.

It is an amenable number.

16425604 is an abundant number, since it is smaller than the sum of its proper divisors (16488480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16425604 is a wasteful number, since it uses less digits than its factorization.

16425604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1125 counting only the distinct ones).

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

The square root of 16425604 is about 4052.8513419567. The cubic root of 16425604 is about 254.1989678318.

The spelling of 16425604 in words is "sixteen million, four hundred twenty-five thousand, six hundred four".