1130239656 has 192 divisors, whose sum is σ = 3907612800. Its totient is φ = 298038528.

The previous prime is 1130239651. The next prime is 1130239687. The reversal of 1130239656 is 6569320311.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1130239656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130239651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173710 + ... + 180098.

It is an arithmetic number, because the mean of its divisors is an integer number (20352150).

Almost surely, 2^1130239656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1130239656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953806400).

1130239656 is an abundant number, since it is smaller than the sum of its proper divisors (2777373144).

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

1130239656 is a wasteful number, since it uses less digits than its factorization.

1130239656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430 (or 6414 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1130239656 is about 33619.0371069726. The cubic root of 1130239656 is about 1041.6540666152.

Adding to 1130239656 its reverse (6569320311), we get a palindrome (7699559967).

The spelling of 1130239656 in words is "one billion, one hundred thirty million, two hundred thirty-nine thousand, six hundred fifty-six".