22190473 has 2 divisors, whose sum is σ = 22190474. Its totient is φ = 22190472.

The previous prime is 22190453. The next prime is 22190479. The reversal of 22190473 is 37409122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19474569 + 2715904 = 4413^2 + 1648^2 .

It is a cyclic number.

It is not a de Polignac number, because 22190473 - 2⁹ = 22189961 is a prime.

It is not a weakly prime, because it can be changed into another prime (22190479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11095236 + 11095237.

It is an arithmetic number, because the mean of its divisors is an integer number (11095237).

Almost surely, 2^22190473 is an apocalyptic number.

It is an amenable number.

22190473 is a deficient number, since it is larger than the sum of its proper divisors (1).

22190473 is an equidigital number, since it uses as much as digits as its factorization.

22190473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22190473 is about 4710.6764906964. The cubic root of 22190473 is about 281.0102662967.

Adding to 22190473 its reverse (37409122), we get a palindrome (59599595).

The spelling of 22190473 in words is "twenty-two million, one hundred ninety thousand, four hundred seventy-three".