1200550 has 24 divisors (see below), whose sum is σ = 2406096. Its totient is φ = 443040.

The previous prime is 1200527. The next prime is 1200581. The reversal of 1200550 is 550021.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1200550.

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, 274 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (100254).

2^1200550 is an apocalyptic number.

1200550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200550 is an abundant number, since it is smaller than the sum of its proper divisors (1205546).

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

1200550 is a wasteful number, since it uses less digits than its factorization.

1200550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 1200550 is about 1095.6961257575. The cubic root of 1200550 is about 106.2820895000.

Adding to 1200550 its reverse (550021), we get a palindrome (1750571).

The spelling of 1200550 in words is "one million, two hundred thousand, five hundred fifty".