864552432 has 80 divisors (see below), whose sum is σ = 2275354368. Its totient is φ = 282816000.

The previous prime is 864552431. The next prime is 864552461. The reversal of 864552432 is 234255468.

It is a super-2 number, since 2×864552432² = 1494901815354229248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864552431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879013 + ... + 879995.

Almost surely, 2^864552432 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 864552432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137677184).

864552432 is an abundant number, since it is smaller than the sum of its proper divisors (1410801936).

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

864552432 is a wasteful number, since it uses less digits than its factorization.

864552432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1312 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

The square root of 864552432 is about 29403.2724709343. The cubic root of 864552432 is about 952.6435812514.

The spelling of 864552432 in words is "eight hundred sixty-four million, five hundred fifty-two thousand, four hundred thirty-two".