18454922 has 16 divisors (see below), whose sum is σ = 28259712. Its totient is φ = 9037200.

The previous prime is 18454883. The next prime is 18454927. The reversal of 18454922 is 22945481.

It is not an unprimeable number, because it can be changed into a prime (18454927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20363 + ... + 21249.

It is an arithmetic number, because the mean of its divisors is an integer number (1766232).

Almost surely, 2^18454922 is an apocalyptic number.

18454922 is a deficient number, since it is larger than the sum of its proper divisors (9804790).

18454922 is a wasteful number, since it uses less digits than its factorization.

18454922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its digits is 23040, while the sum is 35.

The square root of 18454922 is about 4295.9192264287. The cubic root of 18454922 is about 264.2636350959.

The spelling of 18454922 in words is "eighteen million, four hundred fifty-four thousand, nine hundred twenty-two".