442204531545421 has 8 divisors (see below), whose sum is σ = 442835424158400. Its totient is φ = 441573701113248.

The previous prime is 442204531545383. The next prime is 442204531545433. The reversal of 442204531545421 is 124545135402244.

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

It is a cyclic number.

It is not a de Polignac number, because 442204531545421 - 2¹¹ = 442204531543373 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 (442204531545521) 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, 1302571 + ... + 29767528.

It is an arithmetic number, because the mean of its divisors is an integer number (55354428019800).

Almost surely, 2^{442204531545421} is an apocalyptic number.

It is an amenable number.

442204531545421 is a deficient number, since it is larger than the sum of its proper divisors (630892612979).

442204531545421 is a wasteful number, since it uses less digits than its factorization.

442204531545421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31090403.

The product of its (nonzero) digits is 3072000, while the sum is 46.

Adding to 442204531545421 its reverse (124545135402244), we get a palindrome (566749666947665).

The spelling of 442204531545421 in words is "four hundred forty-two trillion, two hundred four billion, five hundred thirty-one million, five hundred forty-five thousand, four hundred twenty-one".