1122790 has 8 divisors (see below), whose sum is σ = 2021040. Its totient is φ = 449112.

The previous prime is 1122761. The next prime is 1122811. The reversal of 1122790 is 972211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56130 + ... + 56149.

It is an arithmetic number, because the mean of its divisors is an integer number (252630).

2^1122790 is an apocalyptic number.

1122790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122790 is a deficient number, since it is larger than the sum of its proper divisors (898250).

1122790 is a wasteful number, since it uses less digits than its factorization.

1122790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112286.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1122790 is about 1059.6178556442. The cubic root of 1122790 is about 103.9360430235.

It can be divided in two parts, 11 and 22790, that added together give a square (22801 = 151²).

The spelling of 1122790 in words is "one million, one hundred twenty-two thousand, seven hundred ninety".