2331056728 has 128 divisors (see below), whose sum is σ = 6213957120. Its totient is φ = 788981760.

The previous prime is 2331056699. The next prime is 2331056729. The reversal of 2331056728 is 8276501332.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331056729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127575 + ... + 144697.

It is an arithmetic number, because the mean of its divisors is an integer number (48546540).

Almost surely, 2^2331056728 is an apocalyptic number.

2331056728 is a gapful number since it is divisible by the number (28) 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 2331056728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3106978560).

2331056728 is an abundant number, since it is smaller than the sum of its proper divisors (3882900392).

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

2331056728 is a wasteful number, since it uses less digits than its factorization.

2331056728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17177 (or 17173 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 2331056728 is about 48281.0182991204. The cubic root of 2331056728 is about 1325.9208935546.

The spelling of 2331056728 in words is "two billion, three hundred thirty-one million, fifty-six thousand, seven hundred twenty-eight".