442015103 has 4 divisors (see below), whose sum is σ = 452294568. Its totient is φ = 431735640.

The previous prime is 442015043. The next prime is 442015111. The reversal of 442015103 is 301510244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442015103 - 2⁸ = 442014847 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 (442015163) 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, 5139668 + ... + 5139753.

It is an arithmetic number, because the mean of its divisors is an integer number (113073642).

Almost surely, 2^442015103 is an apocalyptic number.

442015103 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

442015103 is a deficient number, since it is larger than the sum of its proper divisors (10279465).

442015103 is a wasteful number, since it uses less digits than its factorization.

442015103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10279464.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 442015103 is about 21024.1552267862. The cubic root of 442015103 is about 761.7498363619.

Adding to 442015103 its reverse (301510244), we get a palindrome (743525347).

The spelling of 442015103 in words is "four hundred forty-two million, fifteen thousand, one hundred three".