64013232 has 60 divisors (see below), whose sum is σ = 172938584. Its totient is φ = 20401920.

The previous prime is 64013221. The next prime is 64013251. The reversal of 64013232 is 23231046.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64013199 and 64013208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24132 + ... + 26652.

Almost surely, 2^64013232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64013232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86469292).

64013232 is an abundant number, since it is smaller than the sum of its proper divisors (108925352).

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

64013232 is a wasteful number, since it uses less digits than its factorization.

64013232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2549 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 64013232 is about 8000.8269572589. The cubic root of 64013232 is about 400.0275647671.

Adding to 64013232 its reverse (23231046), we get a palindrome (87244278).

The spelling of 64013232 in words is "sixty-four million, thirteen thousand, two hundred thirty-two".