64368290 has 32 divisors (see below), whose sum is σ = 140206464. Its totient is φ = 20770560.

The previous prime is 64368287. The next prime is 64368301. The reversal of 64368290 is 9286346.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25856 + ... + 28235.

It is an arithmetic number, because the mean of its divisors is an integer number (4381452).

Almost surely, 2^64368290 is an apocalyptic number.

64368290 is an abundant number, since it is smaller than the sum of its proper divisors (75838174).

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

64368290 is a wasteful number, since it uses less digits than its factorization.

64368290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54122.

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

The square root of 64368290 is about 8022.9851053084. The cubic root of 64368290 is about 400.7658037592.

The spelling of 64368290 in words is "sixty-four million, three hundred sixty-eight thousand, two hundred ninety".