1890112 has 28 divisors (see below), whose sum is σ = 4287520. Its totient is φ = 809856.

The previous prime is 1890107. The next prime is 1890113. The reversal of 1890112 is 2110981.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662 + ... + 2557.

2^1890112 is an apocalyptic number.

It is an amenable number.

1890112 is an abundant number, since it is smaller than the sum of its proper divisors (2397408).

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

1890112 is an equidigital number, since it uses as much as digits as its factorization.

1890112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238 (or 4228 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1890112 is about 1374.8134418895. The cubic root of 1890112 is about 123.6410011892.

It can be divided in two parts, 1890 and 112, that added together give a palindrome (2002).

The spelling of 1890112 in words is "one million, eight hundred ninety thousand, one hundred twelve".