22045427 has 2 divisors, whose sum is σ = 22045428. Its totient is φ = 22045426.

The previous prime is 22045367. The next prime is 22045459. The reversal of 22045427 is 72454022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22045427 - 2⁸ = 22045171 is a prime.

It is a super-2 number, since 2×22045427² = 972001703224658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22045396 and 22045405.

It is not a weakly prime, because it can be changed into another prime (22041427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022713 + 11022714.

It is an arithmetic number, because the mean of its divisors is an integer number (11022714).

Almost surely, 2^22045427 is an apocalyptic number.

22045427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22045427 is an equidigital number, since it uses as much as digits as its factorization.

22045427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 22045427 is about 4695.2557970786. The cubic root of 22045427 is about 280.3966614445.

Adding to 22045427 its reverse (72454022), we get a palindrome (94499449).

The spelling of 22045427 in words is "twenty-two million, forty-five thousand, four hundred twenty-seven".