3638245 has 16 divisors (see below), whose sum is σ = 4741632. Its totient is φ = 2664000.

The previous prime is 3638237. The next prime is 3638249. The reversal of 3638245 is 5428363.

It is not a de Polignac number, because 3638245 - 2³ = 3638237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638249) 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 15 ways as a sum of consecutive naturals, for example, 14370 + ... + 14620.

It is an arithmetic number, because the mean of its divisors is an integer number (296352).

Almost surely, 2^3638245 is an apocalyptic number.

It is an amenable number.

3638245 is a deficient number, since it is larger than the sum of its proper divisors (1103387).

3638245 is a wasteful number, since it uses less digits than its factorization.

3638245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

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

The square root of 3638245 is about 1907.4184124098. The cubic root of 3638245 is about 153.8027073792.

It can be divided in two parts, 3638 and 245, that added together give a palindrome (3883).

The spelling of 3638245 in words is "three million, six hundred thirty-eight thousand, two hundred forty-five".