1273822 has 8 divisors (see below), whose sum is σ = 2084472. Its totient is φ = 579000.

The previous prime is 1273787. The next prime is 1273823. The reversal of 1273822 is 2283721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28929 + ... + 28972.

It is an arithmetic number, because the mean of its divisors is an integer number (260559).

2^1273822 is an apocalyptic number.

1273822 is a deficient number, since it is larger than the sum of its proper divisors (810650).

1273822 is a wasteful number, since it uses less digits than its factorization.

1273822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57914.

The product of its digits is 1344, while the sum is 25.

The square root of 1273822 is about 1128.6372313547. The cubic root of 1273822 is about 108.4017387829.

The spelling of 1273822 in words is "one million, two hundred seventy-three thousand, eight hundred twenty-two".