18468210 has 16 divisors (see below), whose sum is σ = 44323776. Its totient is φ = 4924848.

The previous prime is 18468193. The next prime is 18468211. The reversal of 18468210 is 1286481.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 615607 = 18468210 / (1 + 8 + 4 + 6 + 8 + 2 + 1 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18468211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307774 + ... + 307833.

It is an arithmetic number, because the mean of its divisors is an integer number (2770236).

Almost surely, 2^18468210 is an apocalyptic number.

18468210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18468210 is an abundant number, since it is smaller than the sum of its proper divisors (25855566).

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

18468210 is a wasteful number, since it uses less digits than its factorization.

18468210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615617.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18468210 is about 4297.4655321480. The cubic root of 18468210 is about 264.3270453291.

The spelling of 18468210 in words is "eighteen million, four hundred sixty-eight thousand, two hundred ten".