22091373 has 12 divisors (see below), whose sum is σ = 33091968. Its totient is φ = 14727420.

The previous prime is 22091371. The next prime is 22091389. The reversal of 22091373 is 37319022.

It is not a de Polignac number, because 22091373 - 2¹ = 22091371 is a prime.

It is a super-2 number, since 2×22091373² = 976057522050258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22091371) 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, 45213 + ... + 45698.

It is an arithmetic number, because the mean of its divisors is an integer number (2757664).

Almost surely, 2^22091373 is an apocalyptic number.

It is an amenable number.

22091373 is a deficient number, since it is larger than the sum of its proper divisors (11000595).

22091373 is an frugal number, since it uses more digits than its factorization.

22091373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90926 (or 90914 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 22091373 is about 4700.1460615602. The cubic root of 22091373 is about 280.5913226054.

The spelling of 22091373 in words is "twenty-two million, ninety-one thousand, three hundred seventy-three".