264572220 has 192 divisors, whose sum is σ = 873815040. Its totient is φ = 59136000.

The previous prime is 264572201. The next prime is 264572281. The reversal of 264572220 is 22275462.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 439920 + ... + 440520.

It is an arithmetic number, because the mean of its divisors is an integer number (4551120).

Almost surely, 2^264572220 is an apocalyptic number.

264572220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264572220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436907520).

264572220 is an abundant number, since it is smaller than the sum of its proper divisors (609242820).

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

264572220 is a wasteful number, since it uses less digits than its factorization.

264572220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 264572220 is about 16265.6761310436. The cubic root of 264572220 is about 641.9700202419.

The spelling of 264572220 in words is "two hundred sixty-four million, five hundred seventy-two thousand, two hundred twenty".