651382272 has 60 divisors (see below), whose sum is σ = 1879946640. Its totient is φ = 217125888.

The previous prime is 651382267. The next prime is 651382283. The reversal of 651382272 is 272283156.

651382272 is a `hidden beast` number, since 6 + 5 + 1 + 382 + 272 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66072 + ... + 75287.

It is an arithmetic number, because the mean of its divisors is an integer number (31332444).

Almost surely, 2^651382272 is an apocalyptic number.

It is an amenable number.

651382272 is an abundant number, since it is smaller than the sum of its proper divisors (1228564368).

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

651382272 is a wasteful number, since it uses less digits than its factorization.

651382272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141383 (or 141364 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 651382272 is about 25522.1917554116. The cubic root of 651382272 is about 866.8527106187.

The spelling of 651382272 in words is "six hundred fifty-one million, three hundred eighty-two thousand, two hundred seventy-two".