215062272 has 108 divisors (see below), whose sum is σ = 624176280. Its totient is φ = 71215104.

The previous prime is 215062219. The next prime is 215062277. The reversal of 215062272 is 272260512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215062277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619603 + ... + 619949.

It is an arithmetic number, because the mean of its divisors is an integer number (5779410).

Almost surely, 2^215062272 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 215062272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312088140).

215062272 is an abundant number, since it is smaller than the sum of its proper divisors (409114008).

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

215062272 is a wasteful number, since it uses less digits than its factorization.

215062272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 621 counting only the distinct ones).

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

The square root of 215062272 is about 14665.0016024547. The cubic root of 215062272 is about 599.1304738158.

The spelling of 215062272 in words is "two hundred fifteen million, sixty-two thousand, two hundred seventy-two".