22426493 has 2 divisors, whose sum is σ = 22426494. Its totient is φ = 22426492.

The previous prime is 22426471. The next prime is 22426501. The reversal of 22426493 is 39462422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14462809 + 7963684 = 3803^2 + 2822^2 .

It is a cyclic number.

It is not a de Polignac number, because 22426493 - 2¹⁶ = 22360957 is a prime.

It is a super-3 number, since 3×22426493³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22426463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11213246 + 11213247.

It is an arithmetic number, because the mean of its divisors is an integer number (11213247).

Almost surely, 2^22426493 is an apocalyptic number.

It is an amenable number.

22426493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22426493 is an equidigital number, since it uses as much as digits as its factorization.

22426493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 22426493 is about 4735.6618333661. The cubic root of 22426493 is about 282.0030388821.

The spelling of 22426493 in words is "twenty-two million, four hundred twenty-six thousand, four hundred ninety-three".