3785836720 has 20 divisors (see below), whose sum is σ = 8802070560. Its totient is φ = 1514334656.

The previous prime is 3785836679. The next prime is 3785836739. The reversal of 3785836720 is 276385873.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23661400 + ... + 23661559.

It is an arithmetic number, because the mean of its divisors is an integer number (440103528).

Almost surely, 2^3785836720 is an apocalyptic number.

It is an amenable number.

3785836720 is an abundant number, since it is smaller than the sum of its proper divisors (5016233840).

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

3785836720 is a wasteful number, since it uses less digits than its factorization.

3785836720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47322972 (or 47322966 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 3785836720 is about 61529.1534152714. The cubic root of 3785836720 is about 1558.5495942696.

The spelling of 3785836720 in words is "three billion, seven hundred eighty-five million, eight hundred thirty-six thousand, seven hundred twenty".