1138103780 has 48 divisors (see below), whose sum is σ = 2615336640. Its totient is φ = 412579200.

The previous prime is 1138103773. The next prime is 1138103803. The reversal of 1138103780 is 873018311.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65006 + ... + 80634.

It is an arithmetic number, because the mean of its divisors is an integer number (54486180).

Almost surely, 2^1138103780 is an apocalyptic number.

1138103780 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 1138103780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307668320).

1138103780 is an abundant number, since it is smaller than the sum of its proper divisors (1477232860).

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

1138103780 is a wasteful number, since it uses less digits than its factorization.

1138103780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980 (or 15978 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 1138103780 is about 33735.7937508516. The cubic root of 1138103780 is about 1044.0644022552.

The spelling of 1138103780 in words is "one billion, one hundred thirty-eight million, one hundred three thousand, seven hundred eighty".