22478353 has 2 divisors, whose sum is σ = 22478354. Its totient is φ = 22478352.

The previous prime is 22478341. The next prime is 22478363. The reversal of 22478353 is 35387422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16875664 + 5602689 = 4108^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 22478353 - 2²¹ = 20381201 is a prime.

It is not a weakly prime, because it can be changed into another prime (22478303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11239176 + 11239177.

It is an arithmetic number, because the mean of its divisors is an integer number (11239177).

Almost surely, 2^22478353 is an apocalyptic number.

It is an amenable number.

22478353 is a deficient number, since it is larger than the sum of its proper divisors (1).

22478353 is an equidigital number, since it uses as much as digits as its factorization.

22478353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 22478353 is about 4741.1341470159. The cubic root of 22478353 is about 282.2202435835.

The spelling of 22478353 in words is "twenty-two million, four hundred seventy-eight thousand, three hundred fifty-three".