3640874 has 8 divisors (see below), whose sum is σ = 5609028. Its totient is φ = 1771200.

The previous prime is 3640867. The next prime is 3640891. The reversal of 3640874 is 4780463.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3636649 + 4225 = 1907^2 + 65^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3640874.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24527 + ... + 24674.

Almost surely, 2^3640874 is an apocalyptic number.

3640874 is a deficient number, since it is larger than the sum of its proper divisors (1968154).

3640874 is a wasteful number, since it uses less digits than its factorization.

3640874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49240.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3640874 is about 1908.1074393231. The cubic root of 3640874 is about 153.8397444638.

The spelling of 3640874 in words is "three million, six hundred forty thousand, eight hundred seventy-four".