1122778340 has 12 divisors (see below), whose sum is σ = 2357834556. Its totient is φ = 449111328.

The previous prime is 1122778339. The next prime is 1122778369. The reversal of 1122778340 is 438772211.

It can be written as a sum of positive squares in 2 ways, for example, as 180042724 + 942735616 = 13418^2 + 30704^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1122778340.

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, 28069439 + ... + 28069478.

It is an arithmetic number, because the mean of its divisors is an integer number (196486213).

Almost surely, 2^1122778340 is an apocalyptic number.

1122778340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122778340 is an abundant number, since it is smaller than the sum of its proper divisors (1235056216).

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

1122778340 is a wasteful number, since it uses less digits than its factorization.

1122778340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56138926 (or 56138924 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1122778340 is about 33507.8847437435. The cubic root of 1122778340 is about 1039.3568323571.

The spelling of 1122778340 in words is "one billion, one hundred twenty-two million, seven hundred seventy-eight thousand, three hundred forty".