22093421 has 32 divisors (see below), whose sum is σ = 28366848. Its totient is φ = 16773120.

The previous prime is 22093411. The next prime is 22093427. The reversal of 22093421 is 12439022.

It is a de Polignac number, because none of the positive numbers 2^k-22093421 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 (22093427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195461 + ... + 195573.

It is an arithmetic number, because the mean of its divisors is an integer number (886464).

Almost surely, 2^22093421 is an apocalyptic number.

It is an amenable number.

22093421 is a deficient number, since it is larger than the sum of its proper divisors (6273427).

22093421 is a wasteful number, since it uses less digits than its factorization.

22093421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22093421 is about 4700.3639220809. The cubic root of 22093421 is about 280.5999931586.

The spelling of 22093421 in words is "twenty-two million, ninety-three thousand, four hundred twenty-one".