442421303401 has 32 divisors (see below), whose sum is σ = 585105334272. Its totient is φ = 323871125760.

The previous prime is 442421303399. The next prime is 442421303411. The reversal of 442421303401 is 104303124244.

It is not a de Polignac number, because 442421303401 - 2¹ = 442421303399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442421303401.

It is not an unprimeable number, because it can be changed into a prime (442421303411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407080 + ... + 1024966.

It is an arithmetic number, because the mean of its divisors is an integer number (18284541696).

Almost surely, 2^442421303401 is an apocalyptic number.

It is an amenable number.

442421303401 is a deficient number, since it is larger than the sum of its proper divisors (142684030871).

442421303401 is a wasteful number, since it uses less digits than its factorization.

442421303401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618469.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 442421303401 its reverse (104303124244), we get a palindrome (546724427645).

The spelling of 442421303401 in words is "four hundred forty-two billion, four hundred twenty-one million, three hundred three thousand, four hundred one".