264209928 has 16 divisors (see below), whose sum is σ = 660524880. Its totient is φ = 88069968.

The previous prime is 264209921. The next prime is 264209941. The reversal of 264209928 is 829902462.

It is a self number, because there is not a number n which added to its sum of digits gives 264209928.

It is not an unprimeable number, because it can be changed into a prime (264209921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504350 + ... + 5504397.

It is an arithmetic number, because the mean of its divisors is an integer number (41282805).

Almost surely, 2^264209928 is an apocalyptic number.

It is an amenable number.

264209928 is an abundant number, since it is smaller than the sum of its proper divisors (396314952).

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

264209928 is a wasteful number, since it uses less digits than its factorization.

264209928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008756 (or 11008752 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 264209928 is about 16254.5356131758. The cubic root of 264209928 is about 641.6768591473.

The spelling of 264209928 in words is "two hundred sixty-four million, two hundred nine thousand, nine hundred twenty-eight".