652021272 has 128 divisors (see below), whose sum is σ = 2105280000. Its totient is φ = 183109248.

The previous prime is 652021267. The next prime is 652021291. The reversal of 652021272 is 272120256.

652021272 is a `hidden beast` number, since 652 + 0 + 2 + 1 + 2 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85554 + ... + 92862.

It is an arithmetic number, because the mean of its divisors is an integer number (16447500).

Almost surely, 2^652021272 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 652021272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052640000).

652021272 is an abundant number, since it is smaller than the sum of its proper divisors (1453258728).

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

652021272 is a wasteful number, since it uses less digits than its factorization.

652021272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390 (or 7380 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 652021272 is about 25534.7072041173. The cubic root of 652021272 is about 867.1360761501.

The spelling of 652021272 in words is "six hundred fifty-two million, twenty-one thousand, two hundred seventy-two".