264385285 has 32 divisors (see below), whose sum is σ = 347656320. Its totient is φ = 192326400.

The previous prime is 264385279. The next prime is 264385369. The reversal of 264385285 is 582583462.

It is not a de Polignac number, because 264385285 - 2⁹ = 264384773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248655 + ... + 249715.

It is an arithmetic number, because the mean of its divisors is an integer number (10864260).

Almost surely, 2^264385285 is an apocalyptic number.

It is an amenable number.

264385285 is a deficient number, since it is larger than the sum of its proper divisors (83271035).

264385285 is a wasteful number, since it uses less digits than its factorization.

264385285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its digits is 460800, while the sum is 43.

The square root of 264385285 is about 16259.9288128823. The cubic root of 264385285 is about 641.8187887677.

The spelling of 264385285 in words is "two hundred sixty-four million, three hundred eighty-five thousand, two hundred eighty-five".