2261943808 has 40 divisors (see below), whose sum is σ = 4615677792. Its totient is φ = 1106896896.

The previous prime is 2261943781. The next prime is 2261943821. The reversal of 2261943808 is 8083491622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22935 + ... + 71062.

Almost surely, 2^2261943808 is an apocalyptic number.

It is an amenable number.

2261943808 is an abundant number, since it is smaller than the sum of its proper divisors (2353733984).

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

2261943808 is an frugal number, since it uses more digits than its factorization.

2261943808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94062 (or 94046 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2261943808 is about 47559.8970562385. The cubic root of 2261943808 is about 1312.6852458472.

The spelling of 2261943808 in words is "two billion, two hundred sixty-one million, nine hundred forty-three thousand, eight hundred eight".