4457242 has 32 divisors (see below), whose sum is σ = 7441920. Its totient is φ = 1995840.

The previous prime is 4457221. The next prime is 4457249. The reversal of 4457242 is 2427544.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4457242.

It is not an unprimeable number, because it can be changed into a prime (4457249) 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 in 15 ways as a sum of consecutive naturals, for example, 66493 + ... + 66559.

It is an arithmetic number, because the mean of its divisors is an integer number (232560).

Almost surely, 2^4457242 is an apocalyptic number.

4457242 is a deficient number, since it is larger than the sum of its proper divisors (2984678).

4457242 is a wasteful number, since it uses less digits than its factorization.

4457242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 8960, while the sum is 28.

The square root of 4457242 is about 2111.2181317903. The cubic root of 4457242 is about 164.5717944945.

The spelling of 4457242 in words is "four million, four hundred fifty-seven thousand, two hundred forty-two".