264520810 has 16 divisors (see below), whose sum is σ = 476821800. Its totient is φ = 105656256.

The previous prime is 264520787. The next prime is 264520811. The reversal of 264520810 is 18025462.

It can be written as a sum of positive squares in 4 ways, for example, as 161112249 + 103408561 = 12693^2 + 10169^2 .

It is a super-2 number, since 2×264520810² = 139942517846112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264520811) 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 7 ways as a sum of consecutive naturals, for example, 11565 + ... + 25744.

Almost surely, 2^264520810 is an apocalyptic number.

264520810 is a deficient number, since it is larger than the sum of its proper divisors (212300990).

264520810 is a wasteful number, since it uses less digits than its factorization.

264520810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38025.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 264520810 is about 16264.0957326253. The cubic root of 264520810 is about 641.9284363640.

The spelling of 264520810 in words is "two hundred sixty-four million, five hundred twenty thousand, eight hundred ten".