264400180 has 48 divisors (see below), whose sum is σ = 632064384. Its totient is φ = 91963520.

The previous prime is 264400153. The next prime is 264400189. The reversal of 264400180 is 81004462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264400189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21067 + ... + 31186.

It is an arithmetic number, because the mean of its divisors is an integer number (13168008).

Almost surely, 2^264400180 is an apocalyptic number.

264400180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264400180 is an abundant number, since it is smaller than the sum of its proper divisors (367664204).

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

264400180 is a wasteful number, since it uses less digits than its factorization.

264400180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52296 (or 52294 counting only the distinct ones).

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

The square root of 264400180 is about 16260.3868342669. The cubic root of 264400180 is about 641.8308415203.

The spelling of 264400180 in words is "two hundred sixty-four million, four hundred thousand, one hundred eighty".