3642668 has 12 divisors (see below), whose sum is σ = 6431880. Its totient is φ = 1804992.

The previous prime is 3642649. The next prime is 3642673. The reversal of 3642668 is 8662463.

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, 3578 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (535990).

Almost surely, 2^3642668 is an apocalyptic number.

It is an amenable number.

3642668 is a deficient number, since it is larger than the sum of its proper divisors (2789212).

3642668 is a wasteful number, since it uses less digits than its factorization.

3642668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176 (or 8174 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 3642668 is about 1908.5774807432. The cubic root of 3642668 is about 153.8650079201.

The spelling of 3642668 in words is "three million, six hundred forty-two thousand, six hundred sixty-eight".