22424623 has 4 divisors (see below), whose sum is σ = 24149608. Its totient is φ = 20699640.

The previous prime is 22424621. The next prime is 22424639. The reversal of 22424623 is 32642422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32642422 = 2 ⋅16321211.

It is not a de Polignac number, because 22424623 - 2¹ = 22424621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862473 + ... + 862498.

It is an arithmetic number, because the mean of its divisors is an integer number (6037402).

Almost surely, 2^22424623 is an apocalyptic number.

22424623 is a deficient number, since it is larger than the sum of its proper divisors (1724985).

22424623 is a wasteful number, since it uses less digits than its factorization.

22424623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724984.

The product of its digits is 4608, while the sum is 25.

The square root of 22424623 is about 4735.4643911659. The cubic root of 22424623 is about 281.9952005286.

The spelling of 22424623 in words is "twenty-two million, four hundred twenty-four thousand, six hundred twenty-three".