22431441 has 4 divisors (see below), whose sum is σ = 29908592. Its totient is φ = 14954292.

The previous prime is 22431439. The next prime is 22431473. The reversal of 22431441 is 14413422.

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 not a de Polignac number, because 22431441 - 2¹ = 22431439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22431841) 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, 3738571 + ... + 3738576.

It is an arithmetic number, because the mean of its divisors is an integer number (7477148).

Almost surely, 2^22431441 is an apocalyptic number.

It is an amenable number.

22431441 is a deficient number, since it is larger than the sum of its proper divisors (7477151).

22431441 is an equidigital number, since it uses as much as digits as its factorization.

22431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477150.

The product of its digits is 768, while the sum is 21.

The square root of 22431441 is about 4736.1842236129. The cubic root of 22431441 is about 282.0237769801.

Adding to 22431441 its reverse (14413422), we get a palindrome (36844863).

The spelling of 22431441 in words is "twenty-two million, four hundred thirty-one thousand, four hundred forty-one".