16445604 has 24 divisors (see below), whose sum is σ = 43855168. Its totient is φ = 4698720.

The previous prime is 16445603. The next prime is 16445623. The reversal of 16445604 is 40654461.

It is not an unprimeable number, because it can be changed into a prime (16445603) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 97807 + ... + 97974.

Almost surely, 2^16445604 is an apocalyptic number.

16445604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16445604 is an abundant number, since it is smaller than the sum of its proper divisors (27409564).

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

16445604 is a wasteful number, since it uses less digits than its factorization.

16445604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195795 (or 195793 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 16445604 is about 4055.3179899978. The cubic root of 16445604 is about 254.3020978256.

The spelling of 16445604 in words is "sixteen million, four hundred forty-five thousand, six hundred four".