1130644812 has 36 divisors (see below), whose sum is σ = 2899811768. Its totient is φ = 342619200.

The previous prime is 1130644777. The next prime is 1130644817. The reversal of 1130644812 is 2184460311.

It is a self number, because there is not a number n which added to its sum of digits gives 1130644812.

It is not an unprimeable number, because it can be changed into a prime (1130644817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387889 + ... + 390792.

Almost surely, 2^1130644812 is an apocalyptic number.

1130644812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1130644812 is an abundant number, since it is smaller than the sum of its proper divisors (1769166956).

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

1130644812 is a wasteful number, since it uses less digits than its factorization.

1130644812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778710 (or 778697 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1130644812 is about 33625.0622601654. The cubic root of 1130644812 is about 1041.7785186800.

The spelling of 1130644812 in words is "one billion, one hundred thirty million, six hundred forty-four thousand, eight hundred twelve".