1201800 has 48 divisors (see below), whose sum is σ = 3727440. Its totient is φ = 320320.

The previous prime is 1201793. The next prime is 1201813. The reversal of 1201800 is 81021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a plaindrome in base 16.

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, 402 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (77655).

2^1201800 is an apocalyptic number.

1201800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201800 is an abundant number, since it is smaller than the sum of its proper divisors (2525640).

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

1201800 is a wasteful number, since it uses less digits than its factorization.

1201800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1201800 is about 1096.2663909835. The cubic root of 1201800 is about 106.3189633024.

Adding to 1201800 its reverse (81021), we get a palindrome (1282821).

It can be divided in two parts, 120 and 1800, that multiplied together give a cube (216000 = 60³).

The spelling of 1201800 in words is "one million, two hundred one thousand, eight hundred".