652768380 has 432 divisors, whose sum is σ = 2415565152. Its totient is φ = 141926400.

The previous prime is 652768331. The next prime is 652768399. The reversal of 652768380 is 83867256.

It is a super-2 number, since 2×652768380² = 852213115855648800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15180639 + ... + 15180681.

It is an arithmetic number, because the mean of its divisors is an integer number (5591586).

Almost surely, 2^652768380 is an apocalyptic number.

652768380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652768380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207782576).

652768380 is an abundant number, since it is smaller than the sum of its proper divisors (1762796772).

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

652768380 is a wasteful number, since it uses less digits than its factorization.

652768380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 652768380 is about 25549.3322809032. The cubic root of 652768380 is about 867.4671476678.

The spelling of 652768380 in words is "six hundred fifty-two million, seven hundred sixty-eight thousand, three hundred eighty".