22290499 has 12 divisors (see below), whose sum is σ = 28002352. Its totient is φ = 17368560.

The previous prime is 22290497. The next prime is 22290509. The reversal of 22290499 is 99409222.

It is not a de Polignac number, because 22290499 - 2¹ = 22290497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22290491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12312 + ... + 14005.

Almost surely, 2^22290499 is an apocalyptic number.

22290499 is a deficient number, since it is larger than the sum of its proper divisors (5711853).

22290499 is a wasteful number, since it uses less digits than its factorization.

22290499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26346 (or 26335 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 22290499 is about 4721.2814997625. The cubic root of 22290499 is about 281.4318617045.

It can be divided in two parts, 2229049 and 9, that multiplied together give a square (20061441 = 4479²).

The spelling of 22290499 in words is "twenty-two million, two hundred ninety thousand, four hundred ninety-nine".