64339380 has 96 divisors (see below), whose sum is σ = 228775680. Its totient is φ = 14705280.

The previous prime is 64339367. The next prime is 64339393. The reversal of 64339380 is 8393346.

64339380 is a `hidden beast` number, since 643 + 3 + 9 + 3 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (64339367) and next prime (64339393).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4731 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (2383080).

Almost surely, 2^64339380 is an apocalyptic number.

64339380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64339380 is an abundant number, since it is smaller than the sum of its proper divisors (164436300).

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

64339380 is a wasteful number, since it uses less digits than its factorization.

64339380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17046 (or 17038 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 64339380 is about 8021.1832044905. The cubic root of 64339380 is about 400.7057955657.

The spelling of 64339380 in words is "sixty-four million, three hundred thirty-nine thousand, three hundred eighty".