442042503 has 8 divisors (see below), whose sum is σ = 673588608. Its totient is φ = 252595704.

The previous prime is 442042499. The next prime is 442042519. The reversal of 442042503 is 305240244.

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

It is not a de Polignac number, because 442042503 - 2² = 442042499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442042103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10524801 + ... + 10524842.

It is an arithmetic number, because the mean of its divisors is an integer number (84198576).

Almost surely, 2^442042503 is an apocalyptic number.

442042503 is a deficient number, since it is larger than the sum of its proper divisors (231546105).

442042503 is a wasteful number, since it uses less digits than its factorization.

442042503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21049653.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 442042503 is about 21024.8068481021. The cubic root of 442042503 is about 761.7655760309.

Adding to 442042503 its reverse (305240244), we get a palindrome (747282747).

The spelling of 442042503 in words is "four hundred forty-two million, forty-two thousand, five hundred three".