22492357 has 2 divisors, whose sum is σ = 22492358. Its totient is φ = 22492356.

The previous prime is 22492331. The next prime is 22492381. The reversal of 22492357 is 75329422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21771556 + 720801 = 4666^2 + 849^2 .

It is a cyclic number.

It is not a de Polignac number, because 22492357 - 2¹⁹ = 21968069 is a prime.

It is a super-2 number, since 2×22492357² = 1011812246830898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22462357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11246178 + 11246179.

It is an arithmetic number, because the mean of its divisors is an integer number (11246179).

Almost surely, 2^22492357 is an apocalyptic number.

It is an amenable number.

22492357 is a deficient number, since it is larger than the sum of its proper divisors (1).

22492357 is an equidigital number, since it uses as much as digits as its factorization.

22492357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 22492357 is about 4742.6107788854. The cubic root of 22492357 is about 282.2788390958.

The spelling of 22492357 in words is "twenty-two million, four hundred ninety-two thousand, three hundred fifty-seven".