1199800 has 48 divisors (see below), whose sum is σ = 3191760. Its totient is φ = 410880.

The previous prime is 1199789. The next prime is 1199801. The reversal of 1199800 is 89911.

1199800 = 411² + 412² + ... + 417².

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 972 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (66495).

2^1199800 is an apocalyptic number.

1199800 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 1199800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595880).

1199800 is an abundant number, since it is smaller than the sum of its proper divisors (1991960).

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

1199800 is a wasteful number, since it uses less digits than its factorization.

1199800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1199800 is about 1095.3538241135. The cubic root of 1199800 is about 106.2599529315.

The spelling of 1199800 in words is "one million, one hundred ninety-nine thousand, eight hundred".