4530638 has 24 divisors (see below), whose sum is σ = 8015112. Its totient is φ = 1914864.

The previous prime is 4530637. The next prime is 4530649. The reversal of 4530638 is 8360354.

It is a self number, because there is not a number n which added to its sum of digits gives 4530638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4530637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7856 + ... + 8412.

It is an arithmetic number, because the mean of its divisors is an integer number (333963).

Almost surely, 2^4530638 is an apocalyptic number.

4530638 is a deficient number, since it is larger than the sum of its proper divisors (3484474).

4530638 is a wasteful number, since it uses less digits than its factorization.

4530638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 4530638 is about 2128.5295393769. The cubic root of 4530638 is about 165.4701984474.

The spelling of 4530638 in words is "four million, five hundred thirty thousand, six hundred thirty-eight".