18493422 has 32 divisors (see below), whose sum is σ = 40197120. Its totient is φ = 5650560.

The previous prime is 18493421. The next prime is 18493457. The reversal of 18493422 is 22439481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18493421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918 + ... + 6150.

It is an arithmetic number, because the mean of its divisors is an integer number (1256160).

Almost surely, 2^18493422 is an apocalyptic number.

18493422 is an abundant number, since it is smaller than the sum of its proper divisors (21703698).

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

18493422 is a wasteful number, since it uses less digits than its factorization.

18493422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288.

The product of its digits is 13824, while the sum is 33.

The square root of 18493422 is about 4300.3978885680. The cubic root of 18493422 is about 264.4472732451.

It can be divided in two parts, 18493 and 422, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 18493422 in words is "eighteen million, four hundred ninety-three thousand, four hundred twenty-two".