3238728736 has 12 divisors (see below), whose sum is σ = 6376247262. Its totient is φ = 1619364352.

The previous prime is 3238728709. The next prime is 3238728743. The reversal of 3238728736 is 6378278323.

It can be written as a sum of positive squares in only one way, i.e., 2106810000 + 1131918736 = 45900^2 + 33644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3238728736.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605105 + ... + 50605168.

Almost surely, 2^3238728736 is an apocalyptic number.

It is an amenable number.

3238728736 is a deficient number, since it is larger than the sum of its proper divisors (3137518526).

3238728736 is a wasteful number, since it uses less digits than its factorization.

3238728736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101210283 (or 101210275 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 49.

The square root of 3238728736 is about 56909.8298714730. The cubic root of 3238728736 is about 1479.5336880079.

The spelling of 3238728736 in words is "three billion, two hundred thirty-eight million, seven hundred twenty-eight thousand, seven hundred thirty-six".