22274831 has 4 divisors (see below), whose sum is σ = 22525200. Its totient is φ = 22024464.

The previous prime is 22274809. The next prime is 22274869. The reversal of 22274831 is 13847222.

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 22274831 - 2¹⁴ = 22258447 is a prime.

It is a super-2 number, since 2×22274831² = 992336192157122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22274794 and 22274803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22274891) 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, 125051 + ... + 125228.

It is an arithmetic number, because the mean of its divisors is an integer number (5631300).

Almost surely, 2^22274831 is an apocalyptic number.

22274831 is a deficient number, since it is larger than the sum of its proper divisors (250369).

22274831 is an equidigital number, since it uses as much as digits as its factorization.

22274831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250368.

The product of its digits is 5376, while the sum is 29.

The square root of 22274831 is about 4719.6219128231. The cubic root of 22274831 is about 281.3659067288.

The spelling of 22274831 in words is "twenty-two million, two hundred seventy-four thousand, eight hundred thirty-one".