444021041331 has 40 divisors (see below), whose sum is σ = 758115556704. Its totient is φ = 253703197440.

The previous prime is 444021041309. The next prime is 444021041381. The reversal of 444021041331 is 133140120444.

444021041331 is a `hidden beast` number, since 4 + 4 + 4 + 0 + 210 + 413 + 31 = 666.

It is not a de Polignac number, because 444021041331 - 2⁹ = 444021040819 is a prime.

It is a super-2 number, since 2×444021041331² (a number of 24 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 444021041295 and 444021041304.

It is not an unprimeable number, because it can be changed into a prime (444021041381) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7655661 + ... + 7713441.

Almost surely, 2^444021041331 is an apocalyptic number.

444021041331 is a deficient number, since it is larger than the sum of its proper divisors (314094515373).

444021041331 is a wasteful number, since it uses less digits than its factorization.

444021041331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71353 (or 71344 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 444021041331 its reverse (133140120444), we get a palindrome (577161161775).

The spelling of 444021041331 in words is "four hundred forty-four billion, twenty-one million, forty-one thousand, three hundred thirty-one".