4573638 has 16 divisors (see below), whose sum is σ = 10163760. Its totient is φ = 1524528.

The previous prime is 4573637. The next prime is 4573649. The reversal of 4573638 is 8363754.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4573631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42295 + ... + 42402.

It is an arithmetic number, because the mean of its divisors is an integer number (635235).

Almost surely, 2^4573638 is an apocalyptic number.

4573638 is an abundant number, since it is smaller than the sum of its proper divisors (5590122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4573638 is a wasteful number, since it uses less digits than its factorization.

4573638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84708 (or 84702 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 4573638 is about 2138.6065556806. The cubic root of 4573638 is about 165.9920400693.

It can be divided in two parts, 457 and 3638, that added together give a triangular number (4095 = T₉₀).

The spelling of 4573638 in words is "four million, five hundred seventy-three thousand, six hundred thirty-eight".