2272638492 has 96 divisors (see below), whose sum is σ = 5960908800. Its totient is φ = 748754496.

The previous prime is 2272638481. The next prime is 2272638617. The reversal of 2272638492 is 2948362722.

2272638492 is a `hidden beast` number, since 2 + 2 + 7 + 2 + 638 + 4 + 9 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4744309 + ... + 4744787.

It is an arithmetic number, because the mean of its divisors is an integer number (62092800).

Almost surely, 2^2272638492 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 2272638492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2980454400).

2272638492 is an abundant number, since it is smaller than the sum of its proper divisors (3688270308).

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

2272638492 is a wasteful number, since it uses less digits than its factorization.

2272638492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 904 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 2272638492 is about 47672.1983130629. The cubic root of 2272638492 is about 1314.7508271204.

The spelling of 2272638492 in words is "two billion, two hundred seventy-two million, six hundred thirty-eight thousand, four hundred ninety-two".