2273965944 has 64 divisors (see below), whose sum is σ = 5831239680. Its totient is φ = 738528000.

The previous prime is 2273965879. The next prime is 2273965949. The reversal of 2273965944 is 4495693722.

It is a super-2 number, since 2×2273965944² = 10341842228943622272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273965949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1446679 + ... + 1448249.

It is an arithmetic number, because the mean of its divisors is an integer number (91113120).

Almost surely, 2^2273965944 is an apocalyptic number.

2273965944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2273965944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2915619840).

2273965944 is an abundant number, since it is smaller than the sum of its proper divisors (3557273736).

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

2273965944 is a wasteful number, since it uses less digits than its factorization.

2273965944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092 (or 3088 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The square root of 2273965944 is about 47686.1189865562. The cubic root of 2273965944 is about 1315.0067600264.

The spelling of 2273965944 in words is "two billion, two hundred seventy-three million, nine hundred sixty-five thousand, nine hundred forty-four".