1898112 has 32 divisors (see below), whose sum is σ = 5042880. Its totient is φ = 632576.

The previous prime is 1898107. The next prime is 1898123. The reversal of 1898112 is 2118981.

It is a tau number, because it is divible by the number of its divisors (32).

It is an Ulam number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 1898112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088 + ... + 2855.

It is an arithmetic number, because the mean of its divisors is an integer number (157590).

2^1898112 is an apocalyptic number.

1898112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1898112 is an abundant number, since it is smaller than the sum of its proper divisors (3144768).

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

1898112 is an equidigital number, since it uses as much as digits as its factorization.

1898112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4948 counting only the distinct ones).

The product of its digits is 1152, while the sum is 30.

The square root of 1898112 is about 1377.7198554133. The cubic root of 1898112 is about 123.8151947060.

The spelling of 1898112 in words is "one million, eight hundred ninety-eight thousand, one hundred twelve".