1939138050 has 96 divisors (see below), whose sum is σ = 5140920960. Its totient is φ = 482521600.

The previous prime is 1939138037. The next prime is 1939138051. The reversal of 1939138050 is 508319391.

It is not an unprimeable number, because it can be changed into a prime (1939138051) 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, 134596 + ... + 148304.

It is an arithmetic number, because the mean of its divisors is an integer number (53551260).

Almost surely, 2^1939138050 is an apocalyptic number.

1939138050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1939138050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2570460480).

1939138050 is an abundant number, since it is smaller than the sum of its proper divisors (3201782910).

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

1939138050 is a wasteful number, since it uses less digits than its factorization.

1939138050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13788 (or 13783 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1939138050 is about 44035.6452206619. The cubic root of 1939138050 is about 1247.0089660144.

The spelling of 1939138050 in words is "one billion, nine hundred thirty-nine million, one hundred thirty-eight thousand, fifty".