18472022 has 8 divisors (see below), whose sum is σ = 27808896. Its totient is φ = 9202392.

The previous prime is 18471953. The next prime is 18472031. The reversal of 18472022 is 22027481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18471982 and 18472000.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16118 + ... + 17225.

It is an arithmetic number, because the mean of its divisors is an integer number (3476112).

Almost surely, 2^18472022 is an apocalyptic number.

18472022 is a deficient number, since it is larger than the sum of its proper divisors (9336874).

18472022 is a wasteful number, since it uses less digits than its factorization.

18472022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33622.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 18472022 is about 4297.9090264918. The cubic root of 18472022 is about 264.3452305490.

The spelling of 18472022 in words is "eighteen million, four hundred seventy-two thousand, twenty-two".