3645238 has 8 divisors (see below), whose sum is σ = 5557680. Its totient is φ = 1792680.

The previous prime is 3645227. The next prime is 3645251. The reversal of 3645238 is 8325463.

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

It is a congruent number.

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, 14818 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (694710).

Almost surely, 2^3645238 is an apocalyptic number.

3645238 is a deficient number, since it is larger than the sum of its proper divisors (1912442).

3645238 is a wasteful number, since it uses less digits than its factorization.

3645238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29942.

The product of its digits is 17280, while the sum is 31.

The square root of 3645238 is about 1909.2506383396. The cubic root of 3645238 is about 153.9011847105.

It can be divided in two parts, 3645 and 238, that added together give a palindrome (3883).

The spelling of 3645238 in words is "three million, six hundred forty-five thousand, two hundred thirty-eight".