22813431 has 8 divisors (see below), whose sum is σ = 30443904. Its totient is φ = 15195960.

The previous prime is 22813411. The next prime is 22813481. The reversal of 22813431 is 13431822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22813431 - 2²¹ = 20716279 is a prime.

It is a super-2 number, since 2×22813431² = 1040905267983522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22813411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2110 + ... + 7076.

It is an arithmetic number, because the mean of its divisors is an integer number (3805488).

Almost surely, 2^22813431 is an apocalyptic number.

22813431 is a deficient number, since it is larger than the sum of its proper divisors (7630473).

22813431 is a wasteful number, since it uses less digits than its factorization.

22813431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501.

The product of its digits is 1152, while the sum is 24.

The square root of 22813431 is about 4776.3407541757. The cubic root of 22813431 is about 283.6156566136.

The spelling of 22813431 in words is "twenty-two million, eight hundred thirteen thousand, four hundred thirty-one".