2139119928 has 320 divisors, whose sum is σ = 7025356800. Its totient is φ = 600929280.

The previous prime is 2139119923. The next prime is 2139119929. The reversal of 2139119928 is 8299119312.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139119923) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15389283 + ... + 15389421.

It is an arithmetic number, because the mean of its divisors is an integer number (21954240).

Almost surely, 2^2139119928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139119928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3512678400).

2139119928 is an abundant number, since it is smaller than the sum of its proper divisors (4886236872).

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

2139119928 is a wasteful number, since it uses less digits than its factorization.

2139119928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 299 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 2139119928 is about 46250.6208390763. The cubic root of 2139119928 is about 1288.4820652867.

The spelling of 2139119928 in words is "two billion, one hundred thirty-nine million, one hundred nineteen thousand, nine hundred twenty-eight".