444223431 has 12 divisors (see below), whose sum is σ = 648272352. Its totient is φ = 293095296.

The previous prime is 444223391. The next prime is 444223519. The reversal of 444223431 is 134322444.

It is a happy number.

444223431 is a `hidden beast` number, since 4 + 4 + 4 + 223 + 431 = 666.

It is not a de Polignac number, because 444223431 - 2¹⁹ = 443699143 is a prime.

It is a super-2 number, since 2×444223431² = 394668913298823522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444223395 and 444223404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444223531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253551 + ... + 255296.

It is an arithmetic number, because the mean of its divisors is an integer number (54022696).

Almost surely, 2^444223431 is an apocalyptic number.

444223431 is a deficient number, since it is larger than the sum of its proper divisors (204048921).

444223431 is a wasteful number, since it uses less digits than its factorization.

444223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508950 (or 508947 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 444223431 is about 21076.6086218822. The cubic root of 444223431 is about 763.0163087758.

Adding to 444223431 its reverse (134322444), we get a palindrome (578545875).

The spelling of 444223431 in words is "four hundred forty-four million, two hundred twenty-three thousand, four hundred thirty-one".