64320338 has 16 divisors (see below), whose sum is σ = 97489656. Its totient is φ = 31825920.

The previous prime is 64320337. The next prime is 64320359. The reversal of 64320338 is 83302346.

It can be written as a sum of positive squares in 4 ways, for example, as 55457809 + 8862529 = 7447^2 + 2977^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64320338.

It is not an unprimeable number, because it can be changed into a prime (64320331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108170 + ... + 108762.

Almost surely, 2^64320338 is an apocalyptic number.

64320338 is a deficient number, since it is larger than the sum of its proper divisors (33169318).

64320338 is a wasteful number, since it uses less digits than its factorization.

64320338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 64320338 is about 8019.9961346624. The cubic root of 64320338 is about 400.6662604597. Note that the first 3 decimals are identical.

The spelling of 64320338 in words is "sixty-four million, three hundred twenty thousand, three hundred thirty-eight".