22949491 has 2 divisors, whose sum is σ = 22949492. Its totient is φ = 22949490.

The previous prime is 22949471. The next prime is 22949501. The reversal of 22949491 is 19494922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22949491 - 2¹³ = 22941299 is a prime.

It is a super-3 number, since 3×22949491³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22949431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11474745 + 11474746.

It is an arithmetic number, because the mean of its divisors is an integer number (11474746).

Almost surely, 2^22949491 is an apocalyptic number.

22949491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22949491 is an equidigital number, since it uses as much as digits as its factorization.

22949491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 22949491 is about 4790.5627018128. The cubic root of 22949491 is about 284.1783702272.

It can be divided in two parts, 22 and 949491, that multiplied together give a palindrome (20888802).

The spelling of 22949491 in words is "twenty-two million, nine hundred forty-nine thousand, four hundred ninety-one".