1140420012 has 48 divisors (see below), whose sum is σ = 2783743200. Its totient is φ = 362897920.

The previous prime is 1140419999. The next prime is 1140420013. The reversal of 1140420012 is 2100240411.

It is a junction number, because it is equal to n+sod(n) for n = 1140419973 and 1140420000.

It is not an unprimeable number, because it can be changed into a prime (1140420013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12562 + ... + 49382.

It is an arithmetic number, because the mean of its divisors is an integer number (57994650).

Almost surely, 2^1140420012 is an apocalyptic number.

1140420012 is a gapful number since it is divisible by the number (12) 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 1140420012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391871600).

1140420012 is an abundant number, since it is smaller than the sum of its proper divisors (1643323188).

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

1140420012 is a wasteful number, since it uses less digits than its factorization.

1140420012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36946 (or 36944 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1140420012 is about 33770.1053003985. The cubic root of 1140420012 is about 1044.7722043402.

Adding to 1140420012 its reverse (2100240411), we get a palindrome (3240660423).

The spelling of 1140420012 in words is "one billion, one hundred forty million, four hundred twenty thousand, twelve".