16389682 has 4 divisors (see below), whose sum is σ = 24584526. Its totient is φ = 8194840.

The previous prime is 16389679. The next prime is 16389689. The reversal of 16389682 is 28698361.

16389682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12737761 + 3651921 = 3569^2 + 1911^2 .

It is a super-2 number, since 2×16389682² = 537243352122248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16389689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4097419 + ... + 4097422.

Almost surely, 2^16389682 is an apocalyptic number.

16389682 is a deficient number, since it is larger than the sum of its proper divisors (8194844).

16389682 is an equidigital number, since it uses as much as digits as its factorization.

16389682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8194843.

The product of its digits is 124416, while the sum is 43.

The square root of 16389682 is about 4048.4172215818. The cubic root of 16389682 is about 254.0135256401.

It can be divided in two parts, 16389 and 682, that added together give a palindrome (17071).

The spelling of 16389682 in words is "sixteen million, three hundred eighty-nine thousand, six hundred eighty-two".