18422850 has 24 divisors (see below), whose sum is σ = 45689040. Its totient is φ = 4912720.

The previous prime is 18422827. The next prime is 18422861. The reversal of 18422850 is 5822481.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61260 + ... + 61559.

It is an arithmetic number, because the mean of its divisors is an integer number (1903710).

Almost surely, 2^18422850 is an apocalyptic number.

18422850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18422850 is an abundant number, since it is smaller than the sum of its proper divisors (27266190).

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

18422850 is a wasteful number, since it uses less digits than its factorization.

18422850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122834 (or 122829 counting only the distinct ones).

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

The square root of 18422850 is about 4292.1847583719. The cubic root of 18422850 is about 264.1104622682.

The spelling of 18422850 in words is "eighteen million, four hundred twenty-two thousand, eight hundred fifty".