22469549 has 2 divisors, whose sum is σ = 22469550. Its totient is φ = 22469548.

The previous prime is 22469543. The next prime is 22469561. The reversal of 22469549 is 94596422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16144324 + 6325225 = 4018^2 + 2515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22469549 is a prime.

It is a super-3 number, since 3×22469549³ (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 (22469543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11234774 + 11234775.

It is an arithmetic number, because the mean of its divisors is an integer number (11234775).

Almost surely, 2^22469549 is an apocalyptic number.

It is an amenable number.

22469549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22469549 is an equidigital number, since it uses as much as digits as its factorization.

22469549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 22469549 is about 4740.2055862589. The cubic root of 22469549 is about 282.1833934417.

The spelling of 22469549 in words is "twenty-two million, four hundred sixty-nine thousand, five hundred forty-nine".