4521442 has 8 divisors (see below), whose sum is σ = 6893532. Its totient is φ = 2223600.

The previous prime is 4521427. The next prime is 4521509. The reversal of 4521442 is 2441254.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4498641 + 22801 = 2121^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18409 + ... + 18652.

Almost surely, 2^4521442 is an apocalyptic number.

4521442 is a deficient number, since it is larger than the sum of its proper divisors (2372090).

4521442 is a wasteful number, since it uses less digits than its factorization.

4521442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37124.

The product of its digits is 1280, while the sum is 22.

The square root of 4521442 is about 2126.3682653764. The cubic root of 4521442 is about 165.3581689986.

Adding to 4521442 its reverse (2441254), we get a palindrome (6962696).

The spelling of 4521442 in words is "four million, five hundred twenty-one thousand, four hundred forty-two".