444221201403 has 20 divisors (see below), whose sum is σ = 758388224880. Its totient is φ = 253840686192.

The previous prime is 444221201393. The next prime is 444221201423. The reversal of 444221201403 is 304102122444.

444221201403 is a `hidden beast` number, since 4 + 4 + 42 + 212 + 0 + 1 + 403 = 666.

It is not a de Polignac number, because 444221201403 - 2⁶ = 444221201339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (444221201423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 391728888 + ... + 391730021.

It is an arithmetic number, because the mean of its divisors is an integer number (37919411244).

Almost surely, 2^444221201403 is an apocalyptic number.

444221201403 is a deficient number, since it is larger than the sum of its proper divisors (314167023477).

444221201403 is an equidigital number, since it uses as much as digits as its factorization.

444221201403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783458928 (or 783458919 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 444221201403 its reverse (304102122444), we get a palindrome (748323323847).

The spelling of 444221201403 in words is "four hundred forty-four billion, two hundred twenty-one million, two hundred one thousand, four hundred three".