18479850 has 48 divisors (see below), whose sum is σ = 48532608. Its totient is φ = 4637440.

The previous prime is 18479849. The next prime is 18479861. The reversal of 18479850 is 5897481.

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, 1074 + ... + 6173.

It is an arithmetic number, because the mean of its divisors is an integer number (1011096).

Almost surely, 2^18479850 is an apocalyptic number.

18479850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18479850 is an abundant number, since it is smaller than the sum of its proper divisors (30052758).

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

18479850 is a wasteful number, since it uses less digits than its factorization.

18479850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 18479850 is about 4298.8196054266. The cubic root of 18479850 is about 264.3825663322.

The spelling of 18479850 in words is "eighteen million, four hundred seventy-nine thousand, eight hundred fifty".