264780836 has 12 divisors (see below), whose sum is σ = 463494528. Its totient is φ = 132353832.

The previous prime is 264780833. The next prime is 264780871. The reversal of 264780836 is 638087462.

It is a super-2 number, since 2×264780836² = 140217782225717792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (264780833) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13205 + ... + 26531.

It is an arithmetic number, because the mean of its divisors is an integer number (38624544).

Almost surely, 2^264780836 is an apocalyptic number.

It is an amenable number.

264780836 is a deficient number, since it is larger than the sum of its proper divisors (198713692).

264780836 is a wasteful number, since it uses less digits than its factorization.

264780836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18298 (or 18296 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 264780836 is about 16272.0876349656. The cubic root of 264780836 is about 642.1387076839.

The spelling of 264780836 in words is "two hundred sixty-four million, seven hundred eighty thousand, eight hundred thirty-six".