18466120 has 16 divisors (see below), whose sum is σ = 41548860. Its totient is φ = 7386432.

The previous prime is 18466109. The next prime is 18466139. The reversal of 18466120 is 2166481.

It can be written as a sum of positive squares in 2 ways, for example, as 18301284 + 164836 = 4278^2 + 406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230787 + ... + 230866.

Almost surely, 2^18466120 is an apocalyptic number.

18466120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18466120 is an abundant number, since it is smaller than the sum of its proper divisors (23082740).

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

18466120 is a wasteful number, since it uses less digits than its factorization.

18466120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461664 (or 461660 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 18466120 is about 4297.2223586871. Note that the first 3 decimals coincide. The cubic root of 18466120 is about 264.3170738815.

The spelling of 18466120 in words is "eighteen million, four hundred sixty-six thousand, one hundred twenty".