3718720 has 28 divisors (see below), whose sum is σ = 8855964. Its totient is φ = 1487360.

The previous prime is 3718681. The next prime is 3718739. The reversal of 3718720 is 278173.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 2985984 = 856^2 + 1728^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

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, 5491 + ... + 6130.

Almost surely, 2^3718720 is an apocalyptic number.

It is an amenable number.

3718720 is an abundant number, since it is smaller than the sum of its proper divisors (5137244).

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

3718720 is a wasteful number, since it uses less digits than its factorization.

3718720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638 (or 11628 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 3718720 is about 1928.3982991073. The cubic root of 3718720 is about 154.9284442520.

The spelling of 3718720 in words is "three million, seven hundred eighteen thousand, seven hundred twenty".