64133260 has 24 divisors (see below), whose sum is σ = 135253440. Its totient is φ = 25544064.

The previous prime is 64133257. The next prime is 64133273. The reversal of 64133260 is 6233146.

64133260 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64133260² = 8226150076455200, which contains 22 as substring.

64133260 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929 + ... + 11488.

It is an arithmetic number, because the mean of its divisors is an integer number (5635560).

Almost surely, 2^64133260 is an apocalyptic number.

It is an amenable number.

64133260 is an abundant number, since it is smaller than the sum of its proper divisors (71120180).

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

64133260 is a wasteful number, since it uses less digits than its factorization.

64133260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13665 (or 13663 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 64133260 is about 8008.3244190030. The cubic root of 64133260 is about 400.2774325335.

The spelling of 64133260 in words is "sixty-four million, one hundred thirty-three thousand, two hundred sixty".