264180220 has 24 divisors (see below), whose sum is σ = 568311408. Its totient is φ = 103094400.

The previous prime is 264180209. The next prime is 264180247. The reversal of 264180220 is 22081462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160266 + ... + 161905.

It is an arithmetic number, because the mean of its divisors is an integer number (23679642).

Almost surely, 2^264180220 is an apocalyptic number.

264180220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264180220 is an abundant number, since it is smaller than the sum of its proper divisors (304131188).

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

264180220 is a wasteful number, since it uses less digits than its factorization.

264180220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322221 (or 322219 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 264180220 is about 16253.6217502439. The cubic root of 264180220 is about 641.6528080064.

The spelling of 264180220 in words is "two hundred sixty-four million, one hundred eighty thousand, two hundred twenty".