264813620 has 12 divisors (see below), whose sum is σ = 556108644. Its totient is φ = 105925440.

The previous prime is 264813581. The next prime is 264813643. The reversal of 264813620 is 26318462.

It can be written as a sum of positive squares in 2 ways, for example, as 72658576 + 192155044 = 8524^2 + 13862^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620321 + ... + 6620360.

It is an arithmetic number, because the mean of its divisors is an integer number (46342387).

Almost surely, 2^264813620 is an apocalyptic number.

264813620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264813620 is an abundant number, since it is smaller than the sum of its proper divisors (291295024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264813620 is a wasteful number, since it uses less digits than its factorization.

264813620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240690 (or 13240688 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 264813620 is about 16273.0949729915. The cubic root of 264813620 is about 642.1652088548.

The spelling of 264813620 in words is "two hundred sixty-four million, eight hundred thirteen thousand, six hundred twenty".