2231431944 has 32 divisors (see below), whose sum is σ = 6375520320. Its totient is φ = 637551936.

The previous prime is 2231431933. The next prime is 2231431957. The reversal of 2231431944 is 4491341322.

It is a super-3 number, since 3×2231431944³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6640999 + ... + 6641334.

It is an arithmetic number, because the mean of its divisors is an integer number (199235010).

Almost surely, 2^2231431944 is an apocalyptic number.

2231431944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2231431944 is an abundant number, since it is smaller than the sum of its proper divisors (4144088376).

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

2231431944 is a wasteful number, since it uses less digits than its factorization.

2231431944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282349 (or 13282345 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 2231431944 is about 47238.0349294930. The cubic root of 2231431944 is about 1306.7561377835.

The spelling of 2231431944 in words is "two billion, two hundred thirty-one million, four hundred thirty-one thousand, nine hundred forty-four".