264487280 has 20 divisors (see below), whose sum is σ = 614933112. Its totient is φ = 105794880.

The previous prime is 264487273. The next prime is 264487439. The reversal of 264487280 is 82784462.

264487280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652966 + ... + 1653125.

Almost surely, 2^264487280 is an apocalyptic number.

264487280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264487280 is an abundant number, since it is smaller than the sum of its proper divisors (350445832).

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

264487280 is a wasteful number, since it uses less digits than its factorization.

264487280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306104 (or 3306098 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 264487280 is about 16263.0649017951. The cubic root of 264487280 is about 641.9013121339.

The spelling of 264487280 in words is "two hundred sixty-four million, four hundred eighty-seven thousand, two hundred eighty".