1890200 has 48 divisors (see below), whose sum is σ = 4739280. Its totient is φ = 696960.

The previous prime is 1890193. The next prime is 1890211. The reversal of 1890200 is 20981.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2237 + ... + 2963.

It is an arithmetic number, because the mean of its divisors is an integer number (98735).

2^1890200 is an apocalyptic number.

1890200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1890200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2369640).

1890200 is an abundant number, since it is smaller than the sum of its proper divisors (2849080).

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

1890200 is a wasteful number, since it uses less digits than its factorization.

1890200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1890200 is about 1374.8454458593. The cubic root of 1890200 is about 123.6429199889.

The spelling of 1890200 in words is "one million, eight hundred ninety thousand, two hundred".