22232418 has 16 divisors (see below), whose sum is σ = 47885376. Its totient is φ = 6840720.

The previous prime is 22232407. The next prime is 22232429. The reversal of 22232418 is 81423222.

It is an interprime number because it is at equal distance from previous prime (22232407) and next prime (22232429).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 142438 + ... + 142593.

It is an arithmetic number, because the mean of its divisors is an integer number (2992836).

Almost surely, 2^22232418 is an apocalyptic number.

22232418 is an abundant number, since it is smaller than the sum of its proper divisors (25652958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22232418 is a wasteful number, since it uses less digits than its factorization.

22232418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285049.

The product of its digits is 1536, while the sum is 24.

The square root of 22232418 is about 4715.1265094375. The cubic root of 22232418 is about 281.1872124532.

It can be divided in two parts, 222 and 32418, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 22232418 in words is "twenty-two million, two hundred thirty-two thousand, four hundred eighteen".