652646256 has 80 divisors (see below), whose sum is σ = 1751450400. Its totient is φ = 209240064.

The previous prime is 652646249. The next prime is 652646273.

652646256 is nontrivially palindromic in base 10.

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, 156000 + ... + 160128.

It is an arithmetic number, because the mean of its divisors is an integer number (21893130).

Almost surely, 2^652646256 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 652646256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875725200).

652646256 is an abundant number, since it is smaller than the sum of its proper divisors (1098804144).

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

652646256 is a wasteful number, since it uses less digits than its factorization.

652646256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4260 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 652646256 is about 25546.9422044988. The cubic root of 652646256 is about 867.4130472301.

The spelling of 652646256 in words is "six hundred fifty-two million, six hundred forty-six thousand, two hundred fifty-six".