64812032 has 44 divisors (see below), whose sum is σ = 130680480. Its totient is φ = 32126976.

The previous prime is 64812023. The next prime is 64812067. The reversal of 64812032 is 23021846.

It is a junction number, because it is equal to n+sod(n) for n = 64811992 and 64812010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170819 + ... + 171197.

Almost surely, 2^64812032 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 64812032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65340240).

64812032 is an abundant number, since it is smaller than the sum of its proper divisors (65868448).

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

64812032 is a wasteful number, since it uses less digits than its factorization.

64812032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 64812032 is about 8050.5920279194. The cubic root of 64812032 is about 401.6846284406.

Adding to 64812032 its reverse (23021846), we get a palindrome (87833878).

The spelling of 64812032 in words is "sixty-four million, eight hundred twelve thousand, thirty-two".