2151339828 has 144 divisors (see below), whose sum is σ = 6010536000. Its totient is φ = 596090880.

The previous prime is 2151339793. The next prime is 2151339859. The reversal of 2151339828 is 8289331512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2151339828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 798708 + ... + 801396.

Almost surely, 2^2151339828 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 2151339828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3005268000).

2151339828 is an abundant number, since it is smaller than the sum of its proper divisors (3859196172).

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

2151339828 is a wasteful number, since it uses less digits than its factorization.

2151339828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766 (or 2753 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 2151339828 is about 46382.5379641951. The cubic root of 2151339828 is about 1290.9309282985.

The spelling of 2151339828 in words is "two billion, one hundred fifty-one million, three hundred thirty-nine thousand, eight hundred twenty-eight".