4493538 has 48 divisors (see below), whose sum is σ = 11718720. Its totient is φ = 1215648.

The previous prime is 4493527. The next prime is 4493551. The reversal of 4493538 is 8353944.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1456 + ... + 3332.

It is an arithmetic number, because the mean of its divisors is an integer number (244140).

Almost surely, 2^4493538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4493538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5859360).

4493538 is an abundant number, since it is smaller than the sum of its proper divisors (7225182).

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

4493538 is a wasteful number, since it uses less digits than its factorization.

4493538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911 (or 1908 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 4493538 is about 2119.7966883642. The cubic root of 4493538 is about 165.0172984619.

The spelling of 4493538 in words is "four million, four hundred ninety-three thousand, five hundred thirty-eight".