442003031355441 has 4 divisors (see below), whose sum is σ = 589337375140592. Its totient is φ = 294668687570292.

The previous prime is 442003031355437. The next prime is 442003031355443. The reversal of 442003031355441 is 144553130300244.

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 442003031355441 - 2² = 442003031355437 is a prime.

It is a super-3 number, since 3×442003031355441³ (a number of 45 digits) contains 333 as substring.

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 442003031355441.

It is not an unprimeable number, because it can be changed into a prime (442003031355443) 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, 73667171892571 + ... + 73667171892576.

It is an arithmetic number, because the mean of its divisors is an integer number (147334343785148).

Almost surely, 2^{442003031355441} is an apocalyptic number.

It is an amenable number.

442003031355441 is a deficient number, since it is larger than the sum of its proper divisors (147334343785151).

442003031355441 is a wasteful number, since it uses less digits than its factorization.

442003031355441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147334343785150.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 442003031355441 its reverse (144553130300244), we get a palindrome (586556161655685).

The spelling of 442003031355441 in words is "four hundred forty-two trillion, three billion, thirty-one million, three hundred fifty-five thousand, four hundred forty-one".