2345389128 has 128 divisors (see below), whose sum is σ = 6615100800. Its totient is φ = 769886208.

The previous prime is 2345389091. The next prime is 2345389141. The reversal of 2345389128 is 8219835432.

2345389128 is a `hidden beast` number, since 2 + 3 + 4 + 538 + 91 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7493100 + ... + 7493412.

It is an arithmetic number, because the mean of its divisors is an integer number (51680475).

Almost surely, 2^2345389128 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 2345389128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3307550400).

2345389128 is an abundant number, since it is smaller than the sum of its proper divisors (4269711672).

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

2345389128 is a wasteful number, since it uses less digits than its factorization.

2345389128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 738 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2345389128 is about 48429.2177099734. The cubic root of 2345389128 is about 1328.6327985922.

The spelling of 2345389128 in words is "two billion, three hundred forty-five million, three hundred eighty-nine thousand, one hundred twenty-eight".