16969644 has 36 divisors (see below), whose sum is σ = 43059744. Its totient is φ = 5634912.

The previous prime is 16969637. The next prime is 16969661. The reversal of 16969644 is 44696961.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 16969644.

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 in 11 ways as a sum of consecutive naturals, for example, 10669 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (1196104).

Almost surely, 2^16969644 is an apocalyptic number.

It is an amenable number.

16969644 is an abundant number, since it is smaller than the sum of its proper divisors (26090100).

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

16969644 is a wasteful number, since it uses less digits than its factorization.

16969644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1809 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 16969644 is about 4119.4227750985. The cubic root of 16969644 is about 256.9750211659.

The spelling of 16969644 in words is "sixteen million, nine hundred sixty-nine thousand, six hundred forty-four".