64290368 has 14 divisors (see below), whose sum is σ = 127576326. Its totient is φ = 32145152.

The previous prime is 64290367. The next prime is 64290383. The reversal of 64290368 is 86309246.

It can be written as a sum of positive squares in only one way, i.e., 58491904 + 5798464 = 7648^2 + 2408^2 .

It is not an unprimeable number, because it can be changed into a prime (64290367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502205 + ... + 502332.

Almost surely, 2^64290368 is an apocalyptic number.

It is an amenable number.

64290368 is a deficient number, since it is larger than the sum of its proper divisors (63285958).

64290368 is a wasteful number, since it uses less digits than its factorization.

64290368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004549 (or 1004539 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 64290368 is about 8018.1274621946. The cubic root of 64290368 is about 400.6040207715.

The spelling of 64290368 in words is "sixty-four million, two hundred ninety thousand, three hundred sixty-eight".