2244982781 has 4 divisors (see below), whose sum is σ = 2342590752. Its totient is φ = 2147374812.

The previous prime is 2244982759. The next prime is 2244982793. The reversal of 2244982781 is 1872894422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2244982781 - 2⁶ = 2244982717 is a prime.

It is a super-2 number, since 2×2244982781² = 10079895373972987922, 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 (2244982711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48803951 + ... + 48803996.

It is an arithmetic number, because the mean of its divisors is an integer number (585647688).

Almost surely, 2^2244982781 is an apocalyptic number.

It is an amenable number.

2244982781 is a deficient number, since it is larger than the sum of its proper divisors (97607971).

2244982781 is an equidigital number, since it uses as much as digits as its factorization.

2244982781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97607970.

The product of its digits is 516096, while the sum is 47.

The square root of 2244982781 is about 47381.2492553753. The cubic root of 2244982781 is about 1309.3959845814.

The spelling of 2244982781 in words is "two billion, two hundred forty-four million, nine hundred eighty-two thousand, seven hundred eighty-one".