18254922 has 32 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 5088000.

The previous prime is 18254909. The next prime is 18254927. The reversal of 18254922 is 22945281.

It is not an unprimeable number, because it can be changed into a prime (18254927) 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, 3579 + ... + 7022.

It is an arithmetic number, because the mean of its divisors is an integer number (1335852).

Almost surely, 2^18254922 is an apocalyptic number.

18254922 is an abundant number, since it is smaller than the sum of its proper divisors (24492342).

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

18254922 is a wasteful number, since it uses less digits than its factorization.

18254922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10654.

The product of its digits is 11520, while the sum is 33.

The square root of 18254922 is about 4272.5779103487. The cubic root of 18254922 is about 263.3055382011.

The spelling of 18254922 in words is "eighteen million, two hundred fifty-four thousand, nine hundred twenty-two".