64159938 has 40 divisors (see below), whose sum is σ = 152229132. Its totient is φ = 20127744.

The previous prime is 64159891. The next prime is 64159943. The reversal of 64159938 is 83995146.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63728289 + 431649 = 7983^2 + 657^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

64159938 is a Rhonda number in base 10.

Its product of digits (233280) is a multiple of the sum of its prime factors (23328).

It is a junction number, because it is equal to n+sod(n) for n = 64159893 and 64159902.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8895 + ... + 14402.

Almost surely, 2^64159938 is an apocalyptic number.

64159938 is an abundant number, since it is smaller than the sum of its proper divisors (88069194).

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

64159938 is a wasteful number, since it uses less digits than its factorization.

64159938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23328 (or 23319 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 64159938 is about 8009.9898876341. The cubic root of 64159938 is about 400.3329269888.

The spelling of 64159938 in words is "sixty-four million, one hundred fifty-nine thousand, nine hundred thirty-eight".