16444725 has 48 divisors (see below), whose sum is σ = 30664704. Its totient is φ = 7704000.

The previous prime is 16444699. The next prime is 16444739. The reversal of 16444725 is 52744461.

It is not a de Polignac number, because 16444725 - 2⁵ = 16444693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25254 + ... + 25896.

It is an arithmetic number, because the mean of its divisors is an integer number (638848).

Almost surely, 2^16444725 is an apocalyptic number.

16444725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16444725 is a deficient number, since it is larger than the sum of its proper divisors (14219979).

16444725 is a wasteful number, since it uses less digits than its factorization.

16444725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 693 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 16444725 is about 4055.2096123382. The cubic root of 16444725 is about 254.2975670195.

The spelling of 16444725 in words is "sixteen million, four hundred forty-four thousand, seven hundred twenty-five".