1142822 has 8 divisors (see below), whose sum is σ = 1722072. Its totient is φ = 568800.

The previous prime is 1142821. The next prime is 1142833. The reversal of 1142822 is 2282411.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1142794 and 1142803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142821) 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, 704 + ... + 1667.

It is an arithmetic number, because the mean of its divisors is an integer number (215259).

2^1142822 is an apocalyptic number.

1142822 is a deficient number, since it is larger than the sum of its proper divisors (579250).

1142822 is a wasteful number, since it uses less digits than its factorization.

1142822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614.

The product of its digits is 256, while the sum is 20.

The square root of 1142822 is about 1069.0285309570. The cubic root of 1142822 is about 104.5505200501.

The spelling of 1142822 in words is "one million, one hundred forty-two thousand, eight hundred twenty-two".