3045070728 has 144 divisors (see below), whose sum is σ = 9740615040. Its totient is φ = 841821120.

The previous prime is 3045070723. The next prime is 3045070729. The reversal of 3045070728 is 8270705403.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3045070692 and 3045070701.

It is not an unprimeable number, because it can be changed into a prime (3045070723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 481201 + ... + 487487.

It is an arithmetic number, because the mean of its divisors is an integer number (67643160).

Almost surely, 2^3045070728 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 3045070728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4870307520).

3045070728 is an abundant number, since it is smaller than the sum of its proper divisors (6695544312).

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

3045070728 is a wasteful number, since it uses less digits than its factorization.

3045070728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 3045070728 is about 55182.1595083049. The cubic root of 3045070728 is about 1449.4362815446.

The spelling of 3045070728 in words is "three billion, forty-five million, seventy thousand, seven hundred twenty-eight".