3681320 has 16 divisors (see below), whose sum is σ = 8283060. Its totient is φ = 1472512.

The previous prime is 3681319. The next prime is 3681341. The reversal of 3681320 is 231863.

It can be written as a sum of positive squares in 2 ways, for example, as 2979076 + 702244 = 1726^2 + 838^2 .

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, 45977 + ... + 46056.

Almost surely, 2^3681320 is an apocalyptic number.

It is an amenable number.

3681320 is an abundant number, since it is smaller than the sum of its proper divisors (4601740).

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

3681320 is a wasteful number, since it uses less digits than its factorization.

3681320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92044 (or 92040 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3681320 is about 1918.6766272616. The cubic root of 3681320 is about 154.4073099173.

The spelling of 3681320 in words is "three million, six hundred eighty-one thousand, three hundred twenty".