64266244 has 18 divisors (see below), whose sum is σ = 130828110. Its totient is φ = 27542592.

The previous prime is 64266221. The next prime is 64266259. The reversal of 64266244 is 44266246.

It can be written as a sum of positive squares in only one way, i.e., 63011844 + 1254400 = 7938^2 + 1120^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163749 + ... + 164140.

Almost surely, 2^64266244 is an apocalyptic number.

It is an amenable number.

64266244 is an abundant number, since it is smaller than the sum of its proper divisors (66561866).

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

64266244 is a wasteful number, since it uses less digits than its factorization.

64266244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327907 (or 327898 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

The square root of 64266244 is about 8016.6229797839. The cubic root of 64266244 is about 400.5539076118.

The spelling of 64266244 in words is "sixty-four million, two hundred sixty-six thousand, two hundred forty-four".