16989330 has 16 divisors (see below), whose sum is σ = 40774464. Its totient is φ = 4530480.

The previous prime is 16989319. The next prime is 16989337. The reversal of 16989330 is 3398961.

It is not an unprimeable number, because it can be changed into a prime (16989337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283126 + ... + 283185.

It is an arithmetic number, because the mean of its divisors is an integer number (2548404).

Almost surely, 2^16989330 is an apocalyptic number.

16989330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16989330 is an abundant number, since it is smaller than the sum of its proper divisors (23785134).

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

16989330 is a wasteful number, since it uses less digits than its factorization.

16989330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566321.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 16989330 is about 4121.8114949619. The cubic root of 16989330 is about 257.0743525628.

The spelling of 16989330 in words is "sixteen million, nine hundred eighty-nine thousand, three hundred thirty".