442124013 has 4 divisors (see below), whose sum is σ = 589498688. Its totient is φ = 294749340.

The previous prime is 442124003. The next prime is 442124027. The reversal of 442124013 is 310421244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 442124013 - 2¹² = 442119917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442124003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73687333 + ... + 73687338.

It is an arithmetic number, because the mean of its divisors is an integer number (147374672).

Almost surely, 2^442124013 is an apocalyptic number.

It is an amenable number.

442124013 is a deficient number, since it is larger than the sum of its proper divisors (147374675).

442124013 is a wasteful number, since it uses less digits than its factorization.

442124013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147374674.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 442124013 is about 21026.7451832184. The cubic root of 442124013 is about 761.8123948290.

Adding to 442124013 its reverse (310421244), we get a palindrome (752545257).

The spelling of 442124013 in words is "four hundred forty-two million, one hundred twenty-four thousand, thirteen".