16389652 has 12 divisors (see below), whose sum is σ = 29292480. Its totient is φ = 8020376.

The previous prime is 16389643. The next prime is 16389673. The reversal of 16389652 is 25698361.

It is a super-2 number, since 2×16389652² = 537241385362208, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43402 + ... + 43777.

It is an arithmetic number, because the mean of its divisors is an integer number (2441040).

Almost surely, 2^16389652 is an apocalyptic number.

It is an amenable number.

16389652 is a deficient number, since it is larger than the sum of its proper divisors (12902828).

16389652 is a wasteful number, since it uses less digits than its factorization.

16389652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87230 (or 87228 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 16389652 is about 4048.4135164284. The cubic root of 16389652 is about 254.0133706562.

The spelling of 16389652 in words is "sixteen million, three hundred eighty-nine thousand, six hundred fifty-two".