16864458 has 16 divisors (see below), whose sum is σ = 36323616. Its totient is φ = 5189040.

The previous prime is 16864447. The next prime is 16864481. The reversal of 16864458 is 85446861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108028 + ... + 108183.

It is an arithmetic number, because the mean of its divisors is an integer number (2270226).

Almost surely, 2^16864458 is an apocalyptic number.

16864458 is an abundant number, since it is smaller than the sum of its proper divisors (19459158).

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

16864458 is a wasteful number, since it uses less digits than its factorization.

16864458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216229.

The product of its digits is 184320, while the sum is 42.

The square root of 16864458 is about 4106.6358494515. The cubic root of 16864458 is about 256.4429688266.

The spelling of 16864458 in words is "sixteen million, eight hundred sixty-four thousand, four hundred fifty-eight".