18854022 has 16 divisors (see below), whose sum is σ = 41136192. Its totient is φ = 5713320.

The previous prime is 18854021. The next prime is 18854029. The reversal of 18854022 is 22045881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18854021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142768 + ... + 142899.

It is an arithmetic number, because the mean of its divisors is an integer number (2571012).

Almost surely, 2^18854022 is an apocalyptic number.

18854022 is an abundant number, since it is smaller than the sum of its proper divisors (22282170).

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

18854022 is a wasteful number, since it uses less digits than its factorization.

18854022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285683.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 18854022 is about 4342.1218315473. The cubic root of 18854022 is about 266.1550248656.

The spelling of 18854022 in words is "eighteen million, eight hundred fifty-four thousand, twenty-two".