4451242 has 4 divisors (see below), whose sum is σ = 6676866. Its totient is φ = 2225620.

The previous prime is 4451219. The next prime is 4451257. The reversal of 4451242 is 2421544.

It is a happy number.

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., 4372281 + 78961 = 2091^2 + 281^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 1112809 + ... + 1112812.

Almost surely, 2^4451242 is an apocalyptic number.

4451242 is a deficient number, since it is larger than the sum of its proper divisors (2225624).

4451242 is a wasteful number, since it uses less digits than its factorization.

4451242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225623.

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

The square root of 4451242 is about 2109.7966726678. The cubic root of 4451242 is about 164.4979166595.

Adding to 4451242 its reverse (2421544), we get a palindrome (6872786).

The spelling of 4451242 in words is "four million, four hundred fifty-one thousand, two hundred forty-two".