16988772 has 48 divisors (see below), whose sum is σ = 41291712. Its totient is φ = 5431680.

The previous prime is 16988767. The next prime is 16988791. The reversal of 16988772 is 27788961.

Its product of digits (338688) is a multiple of the sum of its prime factors (588).

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, 36622 + ... + 37082.

It is an arithmetic number, because the mean of its divisors is an integer number (860244).

Almost surely, 2^16988772 is an apocalyptic number.

16988772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16988772 is an abundant number, since it is smaller than the sum of its proper divisors (24302940).

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

16988772 is a wasteful number, since it uses less digits than its factorization.

16988772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 586 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The square root of 16988772 is about 4121.7438057211. The cubic root of 16988772 is about 257.0715380697.

The spelling of 16988772 in words is "sixteen million, nine hundred eighty-eight thousand, seven hundred seventy-two".