22342431 has 8 divisors (see below), whose sum is σ = 29962800. Its totient is φ = 14808512.

The previous prime is 22342427. The next prime is 22342433. The reversal of 22342431 is 13424322.

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

It is a cyclic number.

It is not a de Polignac number, because 22342431 - 2² = 22342427 is a prime.

It is a super-2 number, since 2×22342431² = 998368445979522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22342398 and 22342407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22342433) 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, 21006 + ... + 22043.

It is an arithmetic number, because the mean of its divisors is an integer number (3745350).

Almost surely, 2^22342431 is an apocalyptic number.

22342431 is a deficient number, since it is larger than the sum of its proper divisors (7620369).

22342431 is a wasteful number, since it uses less digits than its factorization.

22342431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43225.

The product of its digits is 1152, while the sum is 21.

The square root of 22342431 is about 4726.7780781416. The cubic root of 22342431 is about 281.6502504739.

Adding to 22342431 its reverse (13424322), we get a palindrome (35766753).

The spelling of 22342431 in words is "twenty-two million, three hundred forty-two thousand, four hundred thirty-one".