3678740 has 24 divisors (see below), whose sum is σ = 8320200. Its totient is φ = 1358208.

The previous prime is 3678713. The next prime is 3678743. The reversal of 3678740 is 478763.

It can be written as a sum of positive squares in 4 ways, for example, as 538756 + 3139984 = 734^2 + 1772^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3678740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6815 + ... + 7334.

It is an arithmetic number, because the mean of its divisors is an integer number (346675).

Almost surely, 2^3678740 is an apocalyptic number.

It is an amenable number.

3678740 is an abundant number, since it is smaller than the sum of its proper divisors (4641460).

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

3678740 is a wasteful number, since it uses less digits than its factorization.

3678740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14171 (or 14169 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 3678740 is about 1918.0041710069. The cubic root of 3678740 is about 154.3712301089.

The spelling of 3678740 in words is "three million, six hundred seventy-eight thousand, seven hundred forty".