22241431 has 4 divisors (see below), whose sum is σ = 22320864. Its totient is φ = 22162000.

The previous prime is 22241413. The next prime is 22241441. The reversal of 22241431 is 13414222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13414222 = 2 ⋅6707111.

It is a cyclic number.

It is not a de Polignac number, because 22241431 - 2²¹ = 20144279 is a prime.

It is a super-2 number, since 2×22241431² = 989362505855522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22241399 and 22241408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22241411) 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, 39295 + ... + 39856.

It is an arithmetic number, because the mean of its divisors is an integer number (5580216).

Almost surely, 2^22241431 is an apocalyptic number.

22241431 is a deficient number, since it is larger than the sum of its proper divisors (79433).

22241431 is an equidigital number, since it uses as much as digits as its factorization.

22241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79432.

The product of its digits is 384, while the sum is 19.

The square root of 22241431 is about 4716.0821663750. The cubic root of 22241431 is about 281.2252049911.

Adding to 22241431 its reverse (13414222), we get a palindrome (35655653).

It can be divided in two parts, 2224 and 1431, that added together give a triangular number (3655 = T₈₅).

The spelling of 22241431 in words is "twenty-two million, two hundred forty-one thousand, four hundred thirty-one".