16989154 has 64 divisors (see below), whose sum is σ = 35078400. Its totient is φ = 5992704.

The previous prime is 16989149. The next prime is 16989163. The reversal of 16989154 is 45198961.

It is a self number, because there is not a number n which added to its sum of digits gives 16989154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894157 + ... + 894175.

It is an arithmetic number, because the mean of its divisors is an integer number (548100).

Almost surely, 2^16989154 is an apocalyptic number.

16989154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16989154 is an abundant number, since it is smaller than the sum of its proper divisors (18089246).

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

16989154 is a wasteful number, since it uses less digits than its factorization.

16989154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 58 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The square root of 16989154 is about 4121.7901450705. The cubic root of 16989154 is about 257.0734648440.

The spelling of 16989154 in words is "sixteen million, nine hundred eighty-nine thousand, one hundred fifty-four".