3704857728 has 512 divisors, whose sum is σ = 12584678400. Its totient is φ = 948879360.

The previous prime is 3704857711. The next prime is 3704857729. The reversal of 3704857728 is 8277584073.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3704857729) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55296351 + ... + 55296417.

It is an arithmetic number, because the mean of its divisors is an integer number (24579450).

Almost surely, 2^3704857728 is an apocalyptic number.

3704857728 is a gapful number since it is divisible by the number (38) 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 3704857728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6292339200).

3704857728 is an abundant number, since it is smaller than the sum of its proper divisors (8879820672).

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

3704857728 is a wasteful number, since it uses less digits than its factorization.

3704857728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 51.

The square root of 3704857728 is about 60867.5424836587. The cubic root of 3704857728 is about 1547.3569563723.

The spelling of 3704857728 in words is "three billion, seven hundred four million, eight hundred fifty-seven thousand, seven hundred twenty-eight".