652738128 has 80 divisors (see below), whose sum is σ = 1937959296. Its totient is φ = 185448960.

The previous prime is 652738117. The next prime is 652738133. The reversal of 652738128 is 821837256.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 652738128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55450 + ... + 66182.

Almost surely, 2^652738128 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 652738128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968979648).

652738128 is an abundant number, since it is smaller than the sum of its proper divisors (1285221168).

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

652738128 is a wasteful number, since it uses less digits than its factorization.

652738128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932 (or 10926 counting only the distinct ones).

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

The square root of 652738128 is about 25548.7402429161. The cubic root of 652738128 is about 867.4537467830.

The spelling of 652738128 in words is "six hundred fifty-two million, seven hundred thirty-eight thousand, one hundred twenty-eight".