2272321746 has 24 divisors (see below), whose sum is σ = 4966937820. Its totient is φ = 750736896.

The previous prime is 2272321717. The next prime is 2272321747. The reversal of 2272321746 is 6471232722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2158067025 + 114254721 = 46455^2 + 10689^2 .

It is a super-2 number, since 2×2272321746² = 10326892234688977032, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2272321746.

It is not an unprimeable number, because it can be changed into a prime (2272321747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556551 + ... + 560618.

Almost surely, 2^2272321746 is an apocalyptic number.

2272321746 is an abundant number, since it is smaller than the sum of its proper divisors (2694616074).

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

2272321746 is a wasteful number, since it uses less digits than its factorization.

2272321746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117290 (or 1117287 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 2272321746 is about 47668.8760723389. The cubic root of 2272321746 is about 1314.6897437269.

The spelling of 2272321746 in words is "two billion, two hundred seventy-two million, three hundred twenty-one thousand, seven hundred forty-six".