442541013421 has 16 divisors (see below), whose sum is σ = 507884557824. Its totient is φ = 382424955264.

The previous prime is 442541013407. The next prime is 442541013427. The reversal of 442541013421 is 124310145244.

It is a happy number.

It is not a de Polignac number, because 442541013421 - 2⁷ = 442541013293 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 (442541013427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15731376 + ... + 15759481.

It is an arithmetic number, because the mean of its divisors is an integer number (31742784864).

Almost surely, 2^442541013421 is an apocalyptic number.

It is an amenable number.

442541013421 is a deficient number, since it is larger than the sum of its proper divisors (65343544403).

442541013421 is a wasteful number, since it uses less digits than its factorization.

442541013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31490940.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 442541013421 its reverse (124310145244), we get a palindrome (566851158665).

The spelling of 442541013421 in words is "four hundred forty-two billion, five hundred forty-one million, thirteen thousand, four hundred twenty-one".