64273330 has 16 divisors (see below), whose sum is σ = 126209664. Its totient is φ = 23372080.

The previous prime is 64273289. The next prime is 64273331. The reversal of 64273330 is 3337246.

It is not an unprimeable number, because it can be changed into a prime (64273331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292042 + ... + 292261.

It is an arithmetic number, because the mean of its divisors is an integer number (7888104).

Almost surely, 2^64273330 is an apocalyptic number.

64273330 is a deficient number, since it is larger than the sum of its proper divisors (61936334).

64273330 is a wasteful number, since it uses less digits than its factorization.

64273330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584321.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 64273330 is about 8017.0649242725. The cubic root of 64273330 is about 400.5686287703.

The spelling of 64273330 in words is "sixty-four million, two hundred seventy-three thousand, three hundred thirty".