3681420 has 24 divisors (see below), whose sum is σ = 10308144. Its totient is φ = 981696.

The previous prime is 3681413. The next prime is 3681443. The reversal of 3681420 is 241863.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30619 + ... + 30738.

It is an arithmetic number, because the mean of its divisors is an integer number (429506).

Almost surely, 2^3681420 is an apocalyptic number.

3681420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3681420 is an abundant number, since it is smaller than the sum of its proper divisors (6626724).

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

3681420 is a wasteful number, since it uses less digits than its factorization.

3681420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61369 (or 61367 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3681420 is about 1918.7026867131. The cubic root of 3681420 is about 154.4087080201.

The spelling of 3681420 in words is "three million, six hundred eighty-one thousand, four hundred twenty".