652828638 has 96 divisors (see below), whose sum is σ = 1726744320. Its totient is φ = 160617600.

The previous prime is 652828601. The next prime is 652828643. The reversal of 652828638 is 836828256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93178 + ... + 99938.

It is an arithmetic number, because the mean of its divisors is an integer number (17986920).

Almost surely, 2^652828638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652828638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863372160).

652828638 is an abundant number, since it is smaller than the sum of its proper divisors (1073915682).

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

652828638 is a wasteful number, since it uses less digits than its factorization.

652828638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814 (or 6803 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 652828638 is about 25550.5115017293. The cubic root of 652828638 is about 867.4938392318.

It can be divided in two parts, 65282 and 8638, that added together give a triangular number (73920 = T₃₈₄).

The spelling of 652828638 in words is "six hundred fifty-two million, eight hundred twenty-eight thousand, six hundred thirty-eight".