22193091 has 24 divisors (see below), whose sum is σ = 34613280. Its totient is φ = 13660416.

The previous prime is 22193063. The next prime is 22193107. The reversal of 22193091 is 19039122.

It is not a de Polignac number, because 22193091 - 2¹⁰ = 22192067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22193011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4155 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (1442220).

Almost surely, 2^22193091 is an apocalyptic number.

22193091 is a deficient number, since it is larger than the sum of its proper divisors (12420189).

22193091 is a wasteful number, since it uses less digits than its factorization.

22193091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755 (or 3752 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 22193091 is about 4710.9543619101. The cubic root of 22193091 is about 281.0213169241.

The spelling of 22193091 in words is "twenty-two million, one hundred ninety-three thousand, ninety-one".