2201572872 has 80 divisors (see below), whose sum is σ = 6297730560. Its totient is φ = 718233696.

The previous prime is 2201572861. The next prime is 2201572889. The reversal of 2201572872 is 2782751022.

2201572872 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 572 + 87 + 2 = 666.

It is a super-2 number, since 2×2201572872² = 9693846221452656768, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5688 + ... + 66599.

It is an arithmetic number, because the mean of its divisors is an integer number (78721632).

Almost surely, 2^2201572872 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 2201572872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3148865280).

2201572872 is an abundant number, since it is smaller than the sum of its proper divisors (4096157688).

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

2201572872 is a wasteful number, since it uses less digits than its factorization.

2201572872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72352 (or 72339 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 2201572872 is about 46920.9214743274. The cubic root of 2201572872 is about 1300.9013220868.

The spelling of 2201572872 in words is "two billion, two hundred one million, five hundred seventy-two thousand, eight hundred seventy-two".