22463431 has 4 divisors (see below), whose sum is σ = 22540392. Its totient is φ = 22386472.

The previous prime is 22463423. The next prime is 22463447. The reversal of 22463431 is 13436422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13436422 = 2 ⋅6718211.

It is a cyclic number.

It is not a de Polignac number, because 22463431 - 2³ = 22463423 is a prime.

It is a super-2 number, since 2×22463431² = 1009211464583522, 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 = 22463396 and 22463405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22463401) 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, 38041 + ... + 38626.

It is an arithmetic number, because the mean of its divisors is an integer number (5635098).

Almost surely, 2^22463431 is an apocalyptic number.

22463431 is a deficient number, since it is larger than the sum of its proper divisors (76961).

22463431 is an equidigital number, since it uses as much as digits as its factorization.

22463431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76960.

The product of its digits is 3456, while the sum is 25.

The square root of 22463431 is about 4739.5602116652. The cubic root of 22463431 is about 282.1577801890.

Adding to 22463431 its reverse (13436422), we get a palindrome (35899853).

The spelling of 22463431 in words is "twenty-two million, four hundred sixty-three thousand, four hundred thirty-one".