444254431 has 4 divisors (see below), whose sum is σ = 444445272. Its totient is φ = 444063592.

The previous prime is 444254423. The next prime is 444254467. The reversal of 444254431 is 134452444.

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

It is a cyclic number.

It is not a de Polignac number, because 444254431 - 2³ = 444254423 is a prime.

It is a super-2 number, since 2×444254431² = 394723998926267522, 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 = 444254393 and 444254402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444254411) 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, 91885 + ... + 96598.

It is an arithmetic number, because the mean of its divisors is an integer number (111111318).

Almost surely, 2^444254431 is an apocalyptic number.

444254431 is a deficient number, since it is larger than the sum of its proper divisors (190841).

444254431 is a wasteful number, since it uses less digits than its factorization.

444254431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190840.

The product of its digits is 30720, while the sum is 31.

The square root of 444254431 is about 21077.3440214843. The cubic root of 444254431 is about 763.0340573184.

The spelling of 444254431 in words is "four hundred forty-four million, two hundred fifty-four thousand, four hundred thirty-one".