2272138252 has 12 divisors (see below), whose sum is σ = 3979046176. Its totient is φ = 1135267920.

The previous prime is 2272138201. The next prime is 2272138279. The reversal of 2272138252 is 2528312722.

It is a super-2 number, since 2×2272138252² = 10325224472403231008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193899 + ... + 205282.

Almost surely, 2^2272138252 is an apocalyptic number.

It is an amenable number.

2272138252 is a deficient number, since it is larger than the sum of its proper divisors (1706907924).

2272138252 is a wasteful number, since it uses less digits than its factorization.

2272138252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400608 (or 400606 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 2272138252 is about 47666.9513604552. The cubic root of 2272138252 is about 1314.6543549336.

The spelling of 2272138252 in words is "two billion, two hundred seventy-two million, one hundred thirty-eight thousand, two hundred fifty-two".