4981538 has 4 divisors (see below), whose sum is σ = 7472310. Its totient is φ = 2490768.

The previous prime is 4981531. The next prime is 4981549. The reversal of 4981538 is 8351894.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4481689 + 499849 = 2117^2 + 707^2 .

It is a d-powerful number, because it can be written as 4¹¹ + 9⁶ + 8 + 1 + 5⁷ + 3¹¹ + 8³ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4981531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245383 + ... + 1245386.

Almost surely, 2^4981538 is an apocalyptic number.

4981538 is a deficient number, since it is larger than the sum of its proper divisors (2490772).

4981538 is a wasteful number, since it uses less digits than its factorization.

4981538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490771.

The product of its digits is 34560, while the sum is 38.

The square root of 4981538 is about 2231.9359309801. The cubic root of 4981538 is about 170.7868712566.

The spelling of 4981538 in words is "four million, nine hundred eighty-one thousand, five hundred thirty-eight".