1898118 has 24 divisors (see below), whose sum is σ = 4355208. Its totient is φ = 595392.

The previous prime is 1898107. The next prime is 1898123. The reversal of 1898118 is 8118981.

It is a congruent number.

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, 2796 + ... + 3407.

It is an arithmetic number, because the mean of its divisors is an integer number (181467).

2^1898118 is an apocalyptic number.

1898118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1898118 is an abundant number, since it is smaller than the sum of its proper divisors (2457090).

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

1898118 is a wasteful number, since it uses less digits than its factorization.

1898118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6228 (or 6225 counting only the distinct ones).

The product of its digits is 4608, while the sum is 36.

The square root of 1898118 is about 1377.7220329225. The cubic root of 1898118 is about 123.8153251673.

It can be divided in two parts, 1898 and 118, that added together give a triangular number (2016 = T₆₃).

The spelling of 1898118 in words is "one million, eight hundred ninety-eight thousand, one hundred eighteen".