3681600784 has 40 divisors (see below), whose sum is σ = 7564491288. Its totient is φ = 1729812480.

The previous prime is 3681600763. The next prime is 3681600787. The reversal of 3681600784 is 4870061863.

It can be written as a sum of positive squares in 4 ways, for example, as 2079360000 + 1602240784 = 45600^2 + 40028^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3681600784.

It is not an unprimeable number, because it can be changed into a prime (3681600787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169554 + ... + 190030.

Almost surely, 2^3681600784 is an apocalyptic number.

3681600784 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3681600784 is an abundant number, since it is smaller than the sum of its proper divisors (3882890504).

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

3681600784 is a wasteful number, since it uses less digits than its factorization.

3681600784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21163 (or 21157 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 3681600784 is about 60676.1961892800. The cubic root of 3681600784 is about 1544.1123550193.

The spelling of 3681600784 in words is "three billion, six hundred eighty-one million, six hundred thousand, seven hundred eighty-four".