3681026 has 8 divisors (see below), whose sum is σ = 5531004. Its totient is φ = 1837360.

The previous prime is 3681023. The next prime is 3681031. The reversal of 3681026 is 6201863.

It can be written as a sum of positive squares in 2 ways, for example, as 2356225 + 1324801 = 1535^2 + 1151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3680986 and 3681004.

It is not an unprimeable number, because it can be changed into a prime (3681023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356 + ... + 2736.

Almost surely, 2^3681026 is an apocalyptic number.

3681026 is a deficient number, since it is larger than the sum of its proper divisors (1849978).

3681026 is a wasteful number, since it uses less digits than its factorization.

3681026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3681026 is about 1918.6000104243. The cubic root of 3681026 is about 154.4031993485.

Adding to 3681026 its reverse (6201863), we get a palindrome (9882889).

The spelling of 3681026 in words is "three million, six hundred eighty-one thousand, twenty-six".