2274992721 has 48 divisors (see below), whose sum is σ = 3660733440. Its totient is φ = 1354842720.

The previous prime is 2274992719. The next prime is 2274992729. The reversal of 2274992721 is 1272994722.

It is a happy number.

It is not a de Polignac number, because 2274992721 - 2¹ = 2274992719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2274992729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 275170 + ... + 283316.

It is an arithmetic number, because the mean of its divisors is an integer number (76265280).

Almost surely, 2^2274992721 is an apocalyptic number.

It is an amenable number.

2274992721 is a deficient number, since it is larger than the sum of its proper divisors (1385740719).

2274992721 is a wasteful number, since it uses less digits than its factorization.

2274992721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8266 (or 8263 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2274992721 is about 47696.8837661330. The cubic root of 2274992721 is about 1315.2046544476.

The spelling of 2274992721 in words is "two billion, two hundred seventy-four million, nine hundred ninety-two thousand, seven hundred twenty-one".