64336290 has 32 divisors (see below), whose sum is σ = 161122176. Its totient is φ = 16410240.

The previous prime is 64336277. The next prime is 64336291. The reversal of 64336290 is 9263346.

It is not an unprimeable number, because it can be changed into a prime (64336291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45931 + ... + 47310.

It is an arithmetic number, because the mean of its divisors is an integer number (5035068).

Almost surely, 2^64336290 is an apocalyptic number.

64336290 is an abundant number, since it is smaller than the sum of its proper divisors (96785886).

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

64336290 is a wasteful number, since it uses less digits than its factorization.

64336290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93274.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 64336290 is about 8020.9905872031. The cubic root of 64336290 is about 400.6993806208.

The spelling of 64336290 in words is "sixty-four million, three hundred thirty-six thousand, two hundred ninety".