3644938 has 16 divisors (see below), whose sum is σ = 6104736. Its totient is φ = 1617840.

The previous prime is 3644899. The next prime is 3644947. The reversal of 3644938 is 8394463.

It is a junction number, because it is equal to n+sod(n) for n = 3644897 and 3644906.

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, 981 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (381546).

Almost surely, 2^3644938 is an apocalyptic number.

3644938 is a deficient number, since it is larger than the sum of its proper divisors (2459798).

3644938 is a wasteful number, since it uses less digits than its factorization.

3644938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909.

The product of its digits is 62208, while the sum is 37.

The square root of 3644938 is about 1909.1720718678. The cubic root of 3644938 is about 153.8969626156.

The spelling of 3644938 in words is "three million, six hundred forty-four thousand, nine hundred thirty-eight".