1122591960 has 288 divisors, whose sum is σ = 4403140560. Its totient is φ = 256483584.

The previous prime is 1122591959. The next prime is 1122591973. The reversal of 1122591960 is 691952211.

1122591960 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 591 + 9 + 60 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 475102 + ... + 477458.

Almost surely, 2^1122591960 is an apocalyptic number.

1122591960 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 1122591960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2201570280).

1122591960 is an abundant number, since it is smaller than the sum of its proper divisors (3280548600).

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

1122591960 is a wasteful number, since it uses less digits than its factorization.

1122591960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 1122591960 is about 33505.1034918563. The cubic root of 1122591960 is about 1039.2993184682.

The spelling of 1122591960 in words is "one billion, one hundred twenty-two million, five hundred ninety-one thousand, nine hundred sixty".