1898218 has 16 divisors (see below), whose sum is σ = 3334464. Its totient is φ = 793440.

The previous prime is 1898209. The next prime is 1898227. The reversal of 1898218 is 8128981.

It is an interprime number because it is at equal distance from previous prime (1898209) and next prime (1898227).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080 + ... + 2227.

It is an arithmetic number, because the mean of its divisors is an integer number (208404).

2^1898218 is an apocalyptic number.

1898218 is a deficient number, since it is larger than the sum of its proper divisors (1436246).

1898218 is a wasteful number, since it uses less digits than its factorization.

1898218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357.

The product of its digits is 9216, while the sum is 37.

The square root of 1898218 is about 1377.7583242354. The cubic root of 1898218 is about 123.8174994815.

It can be divided in two parts, 1898 and 218, that added together give a square (2116 = 46²).

The spelling of 1898218 in words is "one million, eight hundred ninety-eight thousand, two hundred eighteen".