1140000020 has 48 divisors (see below), whose sum is σ = 2453794560. Its totient is φ = 444752256.

The previous prime is 1140000013. The next prime is 1140000031. The reversal of 1140000020 is 200000411.

It is a junction number, because it is equal to n+sod(n) for n = 1139999962 and 1140000007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126794 + ... + 135486.

It is an arithmetic number, because the mean of its divisors is an integer number (51120720).

Almost surely, 2^1140000020 is an apocalyptic number.

1140000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140000020 is an abundant number, since it is smaller than the sum of its proper divisors (1313794540).

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

1140000020 is a wasteful number, since it uses less digits than its factorization.

1140000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8864 (or 8862 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1140000020 is about 33763.8863284427. The cubic root of 1140000020 is about 1044.6439329313.

Adding to 1140000020 its reverse (200000411), we get a palindrome (1340000431).

The spelling of 1140000020 in words is "one billion, one hundred forty million, twenty", and thus it is an aban number.