64340590 has 8 divisors (see below), whose sum is σ = 115813080. Its totient is φ = 25736232.

The previous prime is 64340567. The next prime is 64340609. The reversal of 64340590 is 9504346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3217020 + ... + 3217039.

It is an arithmetic number, because the mean of its divisors is an integer number (14476635).

Almost surely, 2^64340590 is an apocalyptic number.

64340590 is a deficient number, since it is larger than the sum of its proper divisors (51472490).

64340590 is a wasteful number, since it uses less digits than its factorization.

64340590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434066.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 64340590 is about 8021.2586294172. The cubic root of 64340590 is about 400.7083075108.

The spelling of 64340590 in words is "sixty-four million, three hundred forty thousand, five hundred ninety".