22093949 has 4 divisors (see below), whose sum is σ = 22163964. Its totient is φ = 22023936.

The previous prime is 22093927. The next prime is 22093991. The reversal of 22093949 is 94939022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13579225 + 8514724 = 3685^2 + 2918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22093949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22093249) 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 in 3 ways as a sum of consecutive naturals, for example, 34532 + ... + 35165.

It is an arithmetic number, because the mean of its divisors is an integer number (5540991).

Almost surely, 2^22093949 is an apocalyptic number.

It is an amenable number.

22093949 is a deficient number, since it is larger than the sum of its proper divisors (70015).

22093949 is an equidigital number, since it uses as much as digits as its factorization.

22093949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70014.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 22093949 is about 4700.4200876092. The cubic root of 22093949 is about 280.6022284487.

The spelling of 22093949 in words is "twenty-two million, ninety-three thousand, nine hundred forty-nine".