22268831 has 4 divisors (see below), whose sum is σ = 23981832. Its totient is φ = 20555832.

The previous prime is 22268801. The next prime is 22268833. The reversal of 22268831 is 13886222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22268831 - 2⁶ = 22268767 is a prime.

It is a super-2 number, since 2×22268831² = 991801668213122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22268833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856481 + ... + 856506.

It is an arithmetic number, because the mean of its divisors is an integer number (5995458).

Almost surely, 2^22268831 is an apocalyptic number.

22268831 is a deficient number, since it is larger than the sum of its proper divisors (1713001).

22268831 is a wasteful number, since it uses less digits than its factorization.

22268831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713000.

The product of its digits is 9216, while the sum is 32.

The square root of 22268831 is about 4718.9862258752. The cubic root of 22268831 is about 281.3406413364.

The spelling of 22268831 in words is "twenty-two million, two hundred sixty-eight thousand, eight hundred thirty-one".