22421593 has 8 divisors (see below), whose sum is σ = 23420160. Its totient is φ = 21443760.

The previous prime is 22421569. The next prime is 22421599. The reversal of 22421593 is 39512422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22421593 - 2⁵ = 22421561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22421599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2953 + ... + 7318.

It is an arithmetic number, because the mean of its divisors is an integer number (2927520).

Almost surely, 2^22421593 is an apocalyptic number.

It is an amenable number.

22421593 is a deficient number, since it is larger than the sum of its proper divisors (998567).

22421593 is a wasteful number, since it uses less digits than its factorization.

22421593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367.

The product of its digits is 4320, while the sum is 28.

The square root of 22421593 is about 4735.1444539739. The cubic root of 22421593 is about 281.9824989558.

The spelling of 22421593 in words is "twenty-two million, four hundred twenty-one thousand, five hundred ninety-three".