652831872 has 128 divisors (see below), whose sum is σ = 2162073600. Its totient is φ = 169559040.

The previous prime is 652831867. The next prime is 652831877. The reversal of 652831872 is 278138256.

It is an interprime number because it is at equal distance from previous prime (652831867) and next prime (652831877).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (652831877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18529 + ... + 40607.

It is an arithmetic number, because the mean of its divisors is an integer number (16891200).

Almost surely, 2^652831872 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 652831872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081036800).

652831872 is an abundant number, since it is smaller than the sum of its proper divisors (1509241728).

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

652831872 is a wasteful number, since it uses less digits than its factorization.

652831872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22114 (or 22102 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 652831872 is about 25550.5747880552. The cubic root of 652831872 is about 867.4952717009.

The spelling of 652831872 in words is "six hundred fifty-two million, eight hundred thirty-one thousand, eight hundred seventy-two".