2248722981 has 12 divisors (see below), whose sum is σ = 3352935040. Its totient is φ = 1450788840.

The previous prime is 2248722977. The next prime is 2248723003. The reversal of 2248722981 is 1892278422.

It is a happy number.

It is not a de Polignac number, because 2248722981 - 2² = 2248722977 is a prime.

It is a super-2 number, since 2×2248722981² = 10113510090555052722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2248722911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4029691 + ... + 4030248.

Almost surely, 2^2248722981 is an apocalyptic number.

It is an amenable number.

2248722981 is a deficient number, since it is larger than the sum of its proper divisors (1104212059).

2248722981 is a wasteful number, since it uses less digits than its factorization.

2248722981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059976 (or 8059973 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2248722981 is about 47420.7020298097. The cubic root of 2248722981 is about 1310.1227437773.

The spelling of 2248722981 in words is "two billion, two hundred forty-eight million, seven hundred twenty-two thousand, nine hundred eighty-one".