215208072 has 48 divisors (see below), whose sum is σ = 602959500. Its totient is φ = 69261696.

The previous prime is 215208013. The next prime is 215208109. The reversal of 215208072 is 270802512.

It can be written as a sum of positive squares in 2 ways, for example, as 205807716 + 9400356 = 14346^2 + 3066^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49447 + ... + 53622.

Almost surely, 2^215208072 is an apocalyptic number.

It is an amenable number.

215208072 is an abundant number, since it is smaller than the sum of its proper divisors (387751428).

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

215208072 is a wasteful number, since it uses less digits than its factorization.

215208072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103110 (or 103103 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 215208072 is about 14669.9717791140. The cubic root of 215208072 is about 599.2658353702.

It can be divided in two parts, 21520 and 8072, that added together give a palindrome (29592).

The spelling of 215208072 in words is "two hundred fifteen million, two hundred eight thousand, seventy-two".