2231818944 has 28 divisors (see below), whose sum is σ = 5905021464. Its totient is φ = 743939584.

The previous prime is 2231818943. The next prime is 2231818949. The reversal of 2231818944 is 4498181322.

It is a super-3 number, since 3×2231818944³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231818896 and 2231818905.

It is not an unprimeable number, because it can be changed into a prime (2231818943) 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, 5811837 + ... + 5812220.

Almost surely, 2^2231818944 is an apocalyptic number.

2231818944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2231818944 is an abundant number, since it is smaller than the sum of its proper divisors (3673202520).

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

2231818944 is a wasteful number, since it uses less digits than its factorization.

2231818944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11624072 (or 11624062 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 2231818944 is about 47242.1310272938. The cubic root of 2231818944 is about 1306.8316775273.

The spelling of 2231818944 in words is "two billion, two hundred thirty-one million, eight hundred eighteen thousand, nine hundred forty-four".