1122843840 has 112 divisors (see below), whose sum is σ = 3575864832. Its totient is φ = 298515456.

The previous prime is 1122843811. The next prime is 1122843859. The reversal of 1122843840 is 483482211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350727 + ... + 353913.

Almost surely, 2^1122843840 is an apocalyptic number.

1122843840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122843840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787932416).

1122843840 is an abundant number, since it is smaller than the sum of its proper divisors (2453020992).

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

1122843840 is a wasteful number, since it uses less digits than its factorization.

1122843840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1122843840 is about 33508.8621113878. The cubic root of 1122843840 is about 1039.3770430987.

The spelling of 1122843840 in words is "one billion, one hundred twenty-two million, eight hundred forty-three thousand, eight hundred forty".