22099849 has 4 divisors (see below), whose sum is σ = 23060736. Its totient is φ = 21138964.

The previous prime is 22099843. The next prime is 22099853. The reversal of 22099849 is 94899022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22099849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22099843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480409 + ... + 480454.

It is an arithmetic number, because the mean of its divisors is an integer number (5765184).

Almost surely, 2^22099849 is an apocalyptic number.

It is an amenable number.

22099849 is a deficient number, since it is larger than the sum of its proper divisors (960887).

22099849 is an equidigital number, since it uses as much as digits as its factorization.

22099849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960886.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 22099849 is about 4701.0476491948. The cubic root of 22099849 is about 280.6272037003.

The spelling of 22099849 in words is "twenty-two million, ninety-nine thousand, eight hundred forty-nine".