1122868440 has 128 divisors (see below), whose sum is σ = 3770712000. Its totient is φ = 297206784.

The previous prime is 1122868427. The next prime is 1122868451. The reversal of 1122868440 is 448682211.

1122868440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1122868395 and 1122868404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144166 + ... + 151754.

Almost surely, 2^1122868440 is an apocalyptic number.

1122868440 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 1122868440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1885356000).

1122868440 is an abundant number, since it is smaller than the sum of its proper divisors (2647843560).

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

1122868440 is a wasteful number, since it uses less digits than its factorization.

1122868440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7736 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1122868440 is about 33509.2291764523. The cubic root of 1122868440 is about 1039.3846334949.

The spelling of 1122868440 in words is "one billion, one hundred twenty-two million, eight hundred sixty-eight thousand, four hundred forty".