1200972 has 24 divisors (see below), whose sum is σ = 2871792. Its totient is φ = 390400.

The previous prime is 1200959. The next prime is 1200989. The reversal of 1200972 is 2790021.

It is a happy number.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (119658).

2^1200972 is an apocalyptic number.

1200972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200972 is an abundant number, since it is smaller than the sum of its proper divisors (1670820).

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

1200972 is a wasteful number, since it uses less digits than its factorization.

1200972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1200972 is about 1095.8886804781. Note that the first 3 decimals coincide. The cubic root of 1200972 is about 106.2945409563.

Adding to 1200972 its reverse (2790021), we get a palindrome (3990993).

It can be divided in two parts, 1200 and 972, that multiplied together give a square (1166400 = 1080²).

The spelling of 1200972 in words is "one million, two hundred thousand, nine hundred seventy-two".