16265389 has 16 divisors (see below), whose sum is σ = 19148800. Its totient is φ = 13528944.

The previous prime is 16265377. The next prime is 16265399. The reversal of 16265389 is 98356261.

16265389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16265389 - 2⁹ = 16264877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16265399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36832 + ... + 37270.

It is an arithmetic number, because the mean of its divisors is an integer number (1196800).

Almost surely, 2^16265389 is an apocalyptic number.

It is an amenable number.

16265389 is a deficient number, since it is larger than the sum of its proper divisors (2883411).

16265389 is an equidigital number, since it uses as much as digits as its factorization.

16265389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

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

The square root of 16265389 is about 4033.0371929850. The cubic root of 16265389 is about 253.3697821902.

The spelling of 16265389 in words is "sixteen million, two hundred sixty-five thousand, three hundred eighty-nine".