2272917192 has 128 divisors (see below), whose sum is σ = 7066348800. Its totient is φ = 593215488.

The previous prime is 2272917181. The next prime is 2272917209. The reversal of 2272917192 is 2917192722.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 206484 + ... + 217212.

It is an arithmetic number, because the mean of its divisors is an integer number (55205850).

Almost surely, 2^2272917192 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 2272917192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3533174400).

2272917192 is an abundant number, since it is smaller than the sum of its proper divisors (4793431608).

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

2272917192 is a wasteful number, since it uses less digits than its factorization.

2272917192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855 (or 10851 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 2272917192 is about 47675.1213108053. The cubic root of 2272917192 is about 1314.8045687779.

The spelling of 2272917192 in words is "two billion, two hundred seventy-two million, nine hundred seventeen thousand, one hundred ninety-two".