444054431 has 4 divisors (see below), whose sum is σ = 444473232. Its totient is φ = 443635632.

The previous prime is 444054407. The next prime is 444054439. The reversal of 444054431 is 134450444.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444054431 is a prime.

It is a super-2 number, since 2×444054431² = 394368675381467522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444054394 and 444054403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444054439) 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, 207806 + ... + 209931.

It is an arithmetic number, because the mean of its divisors is an integer number (111118308).

Almost surely, 2^444054431 is an apocalyptic number.

444054431 is a deficient number, since it is larger than the sum of its proper divisors (418801).

444054431 is a wasteful number, since it uses less digits than its factorization.

444054431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418800.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 444054431 is about 21072.5990565948. The cubic root of 444054431 is about 762.9195360686.

The spelling of 444054431 in words is "four hundred forty-four million, fifty-four thousand, four hundred thirty-one".