1200006 has 24 divisors (see below), whose sum is σ = 2622360. Its totient is φ = 396576.

The previous prime is 1199999. The next prime is 1200007. The reversal of 1200006 is 6000021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200007) 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, 2730 + ... + 3138.

It is an arithmetic number, because the mean of its divisors is an integer number (109265).

2^1200006 is an apocalyptic number.

1200006 is an abundant number, since it is smaller than the sum of its proper divisors (1422354).

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

1200006 is a wasteful number, since it uses less digits than its factorization.

1200006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1200006 is about 1095.4478536197. The cubic root of 1200006 is about 106.2660340277.

Adding to 1200006 its reverse (6000021), we get a palindrome (7200027).

The spelling of 1200006 in words is "one million, two hundred thousand, six".