264016389 has 32 divisors (see below), whose sum is σ = 434214144. Its totient is φ = 138954240.

The previous prime is 264016351. The next prime is 264016391. The reversal of 264016389 is 983610462.

264016389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 264016389 - 2⁸ = 264016133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264016309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177529 + ... + 179009.

It is an arithmetic number, because the mean of its divisors is an integer number (13569192).

Almost surely, 2^264016389 is an apocalyptic number.

It is an amenable number.

264016389 is a deficient number, since it is larger than the sum of its proper divisors (170197755).

264016389 is a wasteful number, since it uses less digits than its factorization.

264016389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 264016389 is about 16248.5811380563. The cubic root of 264016389 is about 641.5201405427.

The spelling of 264016389 in words is "two hundred sixty-four million, sixteen thousand, three hundred eighty-nine".