444423122401 has 4 divisors (see below), whose sum is σ = 444424621312. Its totient is φ = 444421623492.

The previous prime is 444423122323. The next prime is 444423122441. The reversal of 444423122401 is 104221324444.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 444423122401 - 2¹³ = 444423114209 is a prime.

It is a super-3 number, since 3×444423122401³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444423122441) 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, 138921 + ... + 952966.

It is an arithmetic number, because the mean of its divisors is an integer number (111106155328).

Almost surely, 2^444423122401 is an apocalyptic number.

It is an amenable number.

444423122401 is a deficient number, since it is larger than the sum of its proper divisors (1498911).

444423122401 is a wasteful number, since it uses less digits than its factorization.

444423122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498910.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 444423122401 its reverse (104221324444), we get a palindrome (548644446845).

The spelling of 444423122401 in words is "four hundred forty-four billion, four hundred twenty-three million, one hundred twenty-two thousand, four hundred one".