652308390 has 80 divisors (see below), whose sum is σ = 1758168720. Its totient is φ = 173534400.

The previous prime is 652308383. The next prime is 652308403. The reversal of 652308390 is 93803256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 500740 + ... + 502040.

It is an arithmetic number, because the mean of its divisors is an integer number (21977109).

Almost surely, 2^652308390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652308390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879084360).

652308390 is an abundant number, since it is smaller than the sum of its proper divisors (1105860330).

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

652308390 is a wasteful number, since it uses less digits than its factorization.

652308390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 652308390 is about 25540.3286979631. The cubic root of 652308390 is about 867.2633387874.

The spelling of 652308390 in words is "six hundred fifty-two million, three hundred eight thousand, three hundred ninety".