18575850 has 48 divisors (see below), whose sum is σ = 47327328. Its totient is φ = 4818240.

The previous prime is 18575833. The next prime is 18575861. The reversal of 18575850 is 5857581.

It is a junction number, because it is equal to n+sod(n) for n = 18575799 and 18575808.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3877 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (985986).

Almost surely, 2^18575850 is an apocalyptic number.

18575850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18575850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23663664).

18575850 is an abundant number, since it is smaller than the sum of its proper divisors (28751478).

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

18575850 is a wasteful number, since it uses less digits than its factorization.

18575850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 18575850 is about 4309.9709975822. The cubic root of 18575850 is about 264.8395848885.

The spelling of 18575850 in words is "eighteen million, five hundred seventy-five thousand, eight hundred fifty".