22841491 has 2 divisors, whose sum is σ = 22841492. Its totient is φ = 22841490.

The previous prime is 22841479. The next prime is 22841501. The reversal of 22841491 is 19414822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22841491 - 2¹⁹ = 22317203 is a prime.

It is a super-2 number, since 2×22841491² = 1043467422206162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22841431) 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, 11420745 + 11420746.

It is an arithmetic number, because the mean of its divisors is an integer number (11420746).

Almost surely, 2^22841491 is an apocalyptic number.

22841491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22841491 is an equidigital number, since it uses as much as digits as its factorization.

22841491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 22841491 is about 4779.2772466138. The cubic root of 22841491 is about 283.7318892359.

It can be divided in two parts, 22841 and 491, that added together give a palindrome (23332).

The spelling of 22841491 in words is "twenty-two million, eight hundred forty-one thousand, four hundred ninety-one".