16389045 has 24 divisors (see below), whose sum is σ = 28540512. Its totient is φ = 8700000.

The previous prime is 16389019. The next prime is 16389047. The reversal of 16389045 is 54098361.

It is not a de Polignac number, because 16389045 - 2⁷ = 16388917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16389047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10570 + ... + 12020.

It is an arithmetic number, because the mean of its divisors is an integer number (1189188).

Almost surely, 2^16389045 is an apocalyptic number.

16389045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16389045 is a deficient number, since it is larger than the sum of its proper divisors (12151467).

16389045 is a wasteful number, since it uses less digits than its factorization.

16389045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 16389045 is about 4048.3385480960. The cubic root of 16389045 is about 254.0102347747.

The spelling of 16389045 in words is "sixteen million, three hundred eighty-nine thousand, forty-five".