3680738 has 16 divisors (see below), whose sum is σ = 6049080. Its totient is φ = 1671936.

The previous prime is 3680681. The next prime is 3680741. The reversal of 3680738 is 8370863.

It can be written as a sum of positive squares in 4 ways, for example, as 3523129 + 157609 = 1877^2 + 397^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3680698 and 3680707.

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, 881 + ... + 2852.

Almost surely, 2^3680738 is an apocalyptic number.

3680738 is a deficient number, since it is larger than the sum of its proper divisors (2368342).

3680738 is a wasteful number, since it uses less digits than its factorization.

3680738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3680738 is about 1918.5249542292. The cubic root of 3680738 is about 154.3991724566.

The spelling of 3680738 in words is "three million, six hundred eighty thousand, seven hundred thirty-eight".