2387860728 has 128 divisors (see below), whose sum is σ = 6683627520. Its totient is φ = 704770560.

The previous prime is 2387860703. The next prime is 2387860747. The reversal of 2387860728 is 8270687832.

It is a congruent number.

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, 2196201 + ... + 2197287.

It is an arithmetic number, because the mean of its divisors is an integer number (52215840).

Almost surely, 2^2387860728 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 2387860728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3341813760).

2387860728 is an abundant number, since it is smaller than the sum of its proper divisors (4295766792).

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

2387860728 is a wasteful number, since it uses less digits than its factorization.

2387860728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 2387860728 is about 48865.7418648280. The cubic root of 2387860728 is about 1336.6047422372.

The spelling of 2387860728 in words is "two billion, three hundred eighty-seven million, eight hundred sixty thousand, seven hundred twenty-eight".