4638249 has 64 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 2280960.

The previous prime is 4638247. The next prime is 4638287. The reversal of 4638249 is 9428364.

It is a happy number.

It is not a de Polignac number, because 4638249 - 2¹ = 4638247 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47769 + ... + 47865.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

Almost surely, 2^4638249 is an apocalyptic number.

It is an amenable number.

4638249 is a deficient number, since it is larger than the sum of its proper divisors (4393431).

4638249 is a wasteful number, since it uses less digits than its factorization.

4638249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 141 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 4638249 is about 2153.6594438304. The cubic root of 4638249 is about 166.7700349878.

The spelling of 4638249 in words is "four million, six hundred thirty-eight thousand, two hundred forty-nine".