1272822 has 16 divisors (see below), whose sum is σ = 2557632. Its totient is φ = 422280.

The previous prime is 1272811. The next prime is 1272827. The reversal of 1272822 is 2282721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1272792 and 1272801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1497 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (159852).

2^1272822 is an apocalyptic number.

1272822 is an abundant number, since it is smaller than the sum of its proper divisors (1284810).

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

1272822 is a wasteful number, since it uses less digits than its factorization.

1272822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its digits is 896, while the sum is 24.

The square root of 1272822 is about 1128.1941322308. The cubic root of 1272822 is about 108.3733648244.

The spelling of 1272822 in words is "one million, two hundred seventy-two thousand, eight hundred twenty-two".