22381413 has 4 divisors (see below), whose sum is σ = 29841888. Its totient is φ = 14920940.

The previous prime is 22381397. The next prime is 22381427. The reversal of 22381413 is 31418322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22381413 - 2⁴ = 22381397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22381433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3730233 + ... + 3730238.

It is an arithmetic number, because the mean of its divisors is an integer number (7460472).

Almost surely, 2^22381413 is an apocalyptic number.

It is an amenable number.

22381413 is a deficient number, since it is larger than the sum of its proper divisors (7460475).

22381413 is an equidigital number, since it uses as much as digits as its factorization.

22381413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460474.

The product of its digits is 1152, while the sum is 24.

The square root of 22381413 is about 4730.8998087045. The cubic root of 22381413 is about 281.8139585751.

Adding to 22381413 its reverse (31418322), we get a palindrome (53799735).

The spelling of 22381413 in words is "twenty-two million, three hundred eighty-one thousand, four hundred thirteen".