264158220 has 96 divisors (see below), whose sum is σ = 783595008. Its totient is φ = 66350592.

The previous prime is 264158183. The next prime is 264158233. The reversal of 264158220 is 22851462.

264158220 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

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

264158220 is strictly pandigital in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91032 + ... + 93888.

It is an arithmetic number, because the mean of its divisors is an integer number (8162448).

Almost surely, 2^264158220 is an apocalyptic number.

264158220 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 264158220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391797504).

264158220 is an abundant number, since it is smaller than the sum of its proper divisors (519436788).

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

264158220 is a wasteful number, since it uses less digits than its factorization.

264158220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 264158220 is about 16252.9449639135. The cubic root of 264158220 is about 641.6349959819.

The spelling of 264158220 in words is "two hundred sixty-four million, one hundred fifty-eight thousand, two hundred twenty".