3437245728 has 216 divisors, whose sum is σ = 11418475068. Its totient is φ = 977937408.

The previous prime is 3437245723. The next prime is 3437245733. The reversal of 3437245728 is 8275427343.

3437245728 is a `hidden beast` number, since 3 + 4 + 3 + 72 + 4 + 572 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (3437245723) and next prime (3437245733).

It can be written as a sum of positive squares in 2 ways, for example, as 3388636944 + 48608784 = 58212^2 + 6972^2 .

It is not an unprimeable number, because it can be changed into a prime (3437245723) 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, 5263450 + ... + 5264102.

Almost surely, 2^3437245728 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 3437245728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5709237534).

3437245728 is an abundant number, since it is smaller than the sum of its proper divisors (7981229340).

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

3437245728 is a wasteful number, since it uses less digits than its factorization.

3437245728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1038 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The square root of 3437245728 is about 58628.0285187895. The cubic root of 3437245728 is about 1509.1654713561.

The spelling of 3437245728 in words is "three billion, four hundred thirty-seven million, two hundred forty-five thousand, seven hundred twenty-eight".