22038408931 has 24 divisors (see below), whose sum is σ = 27844824672. Its totient is φ = 17073408000.

The previous prime is 22038408913. The next prime is 22038408941. The reversal of 22038408931 is 13980483022.

It is not a de Polignac number, because 22038408931 - 2¹³ = 22038400739 is a prime.

It is a super-2 number, since 2×22038408931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22038408941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71331 + ... + 221731.

It is an arithmetic number, because the mean of its divisors is an integer number (1160201028).

Almost surely, 2^22038408931 is an apocalyptic number.

22038408931 is a deficient number, since it is larger than the sum of its proper divisors (5806415741).

22038408931 is a wasteful number, since it uses less digits than its factorization.

22038408931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150603 (or 150592 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 22038408931 in words is "twenty-two billion, thirty-eight million, four hundred eight thousand, nine hundred thirty-one".