4581938 has 4 divisors (see below), whose sum is σ = 6872910. Its totient is φ = 2290968.

The previous prime is 4581937. The next prime is 4581943. The reversal of 4581938 is 8391854.

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., 4338889 + 243049 = 2083^2 + 493^2 .

It is not an unprimeable number, because it can be changed into a prime (4581931) 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 as a sum of consecutive naturals, namely, 1145483 + ... + 1145486.

Almost surely, 2^4581938 is an apocalyptic number.

4581938 is a deficient number, since it is larger than the sum of its proper divisors (2290972).

4581938 is a wasteful number, since it uses less digits than its factorization.

4581938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290971.

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

The square root of 4581938 is about 2140.5461919800. The cubic root of 4581938 is about 166.0923906260.

The spelling of 4581938 in words is "four million, five hundred eighty-one thousand, nine hundred thirty-eight".