22431454 has 4 divisors (see below), whose sum is σ = 33647184. Its totient is φ = 11215726.

The previous prime is 22431439. The next prime is 22431473. The reversal of 22431454 is 45413422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607862 + ... + 5607865.

It is an arithmetic number, because the mean of its divisors is an integer number (8411796).

Almost surely, 2^22431454 is an apocalyptic number.

22431454 is a deficient number, since it is larger than the sum of its proper divisors (11215730).

22431454 is a wasteful number, since it uses less digits than its factorization.

22431454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11215729.

The product of its digits is 3840, while the sum is 25.

The square root of 22431454 is about 4736.1855960256. The cubic root of 22431454 is about 282.0238314618.

Adding to 22431454 its reverse (45413422), we get a palindrome (67844876).

The spelling of 22431454 in words is "twenty-two million, four hundred thirty-one thousand, four hundred fifty-four".