22442837 has 2 divisors, whose sum is σ = 22442838. Its totient is φ = 22442836.

The previous prime is 22442753. The next prime is 22442843. The reversal of 22442837 is 73824422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13734436 + 8708401 = 3706^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 22442837 - 2²² = 18248533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22442237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11221418 + 11221419.

It is an arithmetic number, because the mean of its divisors is an integer number (11221419).

Almost surely, 2^22442837 is an apocalyptic number.

It is an amenable number.

22442837 is a deficient number, since it is larger than the sum of its proper divisors (1).

22442837 is an equidigital number, since it uses as much as digits as its factorization.

22442837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 22442837 is about 4737.3871490517. The cubic root of 22442837 is about 282.0715283907.

The spelling of 22442837 in words is "twenty-two million, four hundred forty-two thousand, eight hundred thirty-seven".