22289382731 has 48 divisors (see below), whose sum is σ = 29137667328. Its totient is φ = 16563201600.

The previous prime is 22289382727. The next prime is 22289382761. The reversal of 22289382731 is 13728398222.

It is a happy number.

It is not a de Polignac number, because 22289382731 - 2² = 22289382727 is a prime.

It is a super-2 number, since 2×22289382731² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22289382761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18777320 + ... + 18778506.

It is an arithmetic number, because the mean of its divisors is an integer number (607034736).

Almost surely, 2^22289382731 is an apocalyptic number.

22289382731 is a deficient number, since it is larger than the sum of its proper divisors (6848284597).

22289382731 is a wasteful number, since it uses less digits than its factorization.

22289382731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712 (or 1689 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The spelling of 22289382731 in words is "twenty-two billion, two hundred eighty-nine million, three hundred eighty-two thousand, seven hundred thirty-one".