64013832 has 24 divisors (see below), whose sum is σ = 173370990. Its totient is φ = 21337920.

The previous prime is 64013819. The next prime is 64013837. The reversal of 64013832 is 23831046.

It is a happy number.

64013832 is a `hidden beast` number, since 640 + 13 + 8 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36072036 + 27941796 = 6006^2 + 5286^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 64013796 and 64013805.

It is not an unprimeable number, because it can be changed into a prime (64013837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444469 + ... + 444612.

Almost surely, 2^64013832 is an apocalyptic number.

It is an amenable number.

64013832 is an abundant number, since it is smaller than the sum of its proper divisors (109357158).

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

64013832 is a wasteful number, since it uses less digits than its factorization.

64013832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889093 (or 889086 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64013832 is about 8000.8644532950. The cubic root of 64013832 is about 400.0288145909.

Adding to 64013832 its reverse (23831046), we get a palindrome (87844878).

The spelling of 64013832 in words is "sixty-four million, thirteen thousand, eight hundred thirty-two".