3640233 has 8 divisors (see below), whose sum is σ = 5064768. Its totient is φ = 2321264.

The previous prime is 3640223. The next prime is 3640243. The reversal of 3640233 is 3320463.

It is an interprime number because it is at equal distance from previous prime (3640223) and next prime (3640243).

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

It is a cyclic number.

It is not a de Polignac number, because 3640233 - 2²¹ = 1543081 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3640223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26310 + ... + 26447.

It is an arithmetic number, because the mean of its divisors is an integer number (633096).

Almost surely, 2^3640233 is an apocalyptic number.

It is an amenable number.

3640233 is a deficient number, since it is larger than the sum of its proper divisors (1424535).

3640233 is a wasteful number, since it uses less digits than its factorization.

3640233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52783.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3640233 is about 1907.9394644485. The cubic root of 3640233 is about 153.8307157650.

Adding to 3640233 its reverse (3320463), we get a palindrome (6960696).

The spelling of 3640233 in words is "three million, six hundred forty thousand, two hundred thirty-three".