2272492261 has 8 divisors (see below), whose sum is σ = 2462889464. Its totient is φ = 2084322240.

The previous prime is 2272492247. The next prime is 2272492291. The reversal of 2272492261 is 1622942722.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39929761 + 2232562500 = 6319^2 + 47250^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2272492261 - 2⁷ = 2272492133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2272492261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272492291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554670 + ... + 558751.

It is an arithmetic number, because the mean of its divisors is an integer number (307861183).

Almost surely, 2^2272492261 is an apocalyptic number.

It is an amenable number.

2272492261 is a deficient number, since it is larger than the sum of its proper divisors (190397203).

2272492261 is a wasteful number, since it uses less digits than its factorization.

2272492261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113591.

The product of its digits is 48384, while the sum is 37.

The square root of 2272492261 is about 47670.6645747676. The cubic root of 2272492261 is about 1314.7226276725.

The spelling of 2272492261 in words is "two billion, two hundred seventy-two million, four hundred ninety-two thousand, two hundred sixty-one".