2268431972 has 6 divisors (see below), whose sum is σ = 3969755958. Its totient is φ = 1134215984.

The previous prime is 2268431953. The next prime is 2268431989. The reversal of 2268431972 is 2791348622.

It can be written as a sum of positive squares in only one way, i.e., 2241454336 + 26977636 = 47344^2 + 5194^2 .

It is a super-2 number, since 2×2268431972² = 10291567223183617568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283553993 + ... + 283554000.

It is an arithmetic number, because the mean of its divisors is an integer number (661625993).

Almost surely, 2^2268431972 is an apocalyptic number.

It is an amenable number.

2268431972 is a deficient number, since it is larger than the sum of its proper divisors (1701323986).

2268431972 is a wasteful number, since it uses less digits than its factorization.

2268431972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567107997 (or 567107995 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 2268431972 is about 47628.0586629352. The cubic root of 2268431972 is about 1313.9391506765.

The spelling of 2268431972 in words is "two billion, two hundred sixty-eight million, four hundred thirty-one thousand, nine hundred seventy-two".