64805832 has 240 divisors, whose sum is σ = 228842460. Its totient is φ = 16982784.

The previous prime is 64805813. The next prime is 64805837. The reversal of 64805832 is 23850846.

64805832 is a `hidden beast` number, since 648 + 0 + 5 + 8 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 59074596 + 5731236 = 7686^2 + 2394^2 .

It is a super-2 number, since 2×64805832² = 8399591722424448, which contains 22 as substring.

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

64805832 is a modest number, since divided by 5832 gives 648 as remainder.

It is not an unprimeable number, because it can be changed into a prime (64805837) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 412698 + ... + 412854.

Almost surely, 2^64805832 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 64805832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114421230).

64805832 is an abundant number, since it is smaller than the sum of its proper divisors (164036628).

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

64805832 is a wasteful number, since it uses less digits than its factorization.

64805832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 64805832 is about 8050.2069538615. The cubic root of 64805832 is about 401.6718194809.

The spelling of 64805832 in words is "sixty-four million, eight hundred five thousand, eight hundred thirty-two".