16993044 has 48 divisors (see below), whose sum is σ = 45978240. Its totient is φ = 5417280.

The previous prime is 16993033. The next prime is 16993051. The reversal of 16993044 is 44039961.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 937 + ... + 5904.

It is an arithmetic number, because the mean of its divisors is an integer number (957880).

Almost surely, 2^16993044 is an apocalyptic number.

It is an amenable number.

16993044 is an abundant number, since it is smaller than the sum of its proper divisors (28985196).

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

16993044 is a wasteful number, since it uses less digits than its factorization.

16993044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877 (or 6869 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 16993044 is about 4122.2620004071. The cubic root of 16993044 is about 257.0930840172.

The spelling of 16993044 in words is "sixteen million, nine hundred ninety-three thousand, forty-four".