16389452 has 12 divisors (see below), whose sum is σ = 29606976. Its totient is φ = 7930320.

The previous prime is 16389431. The next prime is 16389467. The reversal of 16389452 is 25498361.

It is a happy number.

16389452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16389452² = 537228273720608, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65963 + ... + 66210.

It is an arithmetic number, because the mean of its divisors is an integer number (2467248).

Almost surely, 2^16389452 is an apocalyptic number.

It is an amenable number.

16389452 is a deficient number, since it is larger than the sum of its proper divisors (13217524).

16389452 is a wasteful number, since it uses less digits than its factorization.

16389452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132208 (or 132206 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 16389452 is about 4048.3888153190. The cubic root of 16389452 is about 254.0123374254.

The spelling of 16389452 in words is "sixteen million, three hundred eighty-nine thousand, four hundred fifty-two".