444023322400442 has 4 divisors (see below), whose sum is σ = 666034983600666. Its totient is φ = 222011661200220.

The previous prime is 444023322400349. The next prime is 444023322400447. The reversal of 444023322400442 is 244004223320444.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 439078120464481 + 4945201935961 = 20954191^2 + 2223781^2 .

It is a super-3 number, since 3×444023322400442³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444023322400396 and 444023322400405.

It is not an unprimeable number, because it can be changed into a prime (444023322400447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005830600109 + ... + 111005830600112.

Almost surely, 2^{444023322400442} is an apocalyptic number.

444023322400442 is a deficient number, since it is larger than the sum of its proper divisors (222011661200224).

444023322400442 is a wasteful number, since it uses less digits than its factorization.

444023322400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222011661200223.

The product of its (nonzero) digits is 589824, while the sum is 38.

Adding to 444023322400442 its reverse (244004223320444), we get a palindrome (688027545720886).

The spelling of 444023322400442 in words is "four hundred forty-four trillion, twenty-three billion, three hundred twenty-two million, four hundred thousand, four hundred forty-two".