3680946 has 48 divisors (see below), whose sum is σ = 8611200. Its totient is φ = 1132704.

The previous prime is 3680917. The next prime is 3680947. The reversal of 3680946 is 6490863.

It is a d-powerful number, because it can be written as 3¹⁰ + 6⁸ + 8³ + 0 + 9 + 4⁹ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3680946.

It is not an unprimeable number, because it can be changed into a prime (3680947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15960 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (179400).

Almost surely, 2^3680946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3680946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4305600).

3680946 is an abundant number, since it is smaller than the sum of its proper divisors (4930254).

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

3680946 is a wasteful number, since it uses less digits than its factorization.

3680946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3680946 is about 1918.5791617757. The cubic root of 3680946 is about 154.4020807884.

The spelling of 3680946 in words is "three million, six hundred eighty thousand, nine hundred forty-six".