444890231 has 2 divisors, whose sum is σ = 444890232. Its totient is φ = 444890230.

The previous prime is 444890197. The next prime is 444890233. The reversal of 444890231 is 132098444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444890231 - 2⁶ = 444890167 is a prime.

It is a super-2 number, since 2×444890231² = 395854635278466722, which contains 22 as substring.

Together with 444890233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 444890191 and 444890200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444890233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222445115 + 222445116.

It is an arithmetic number, because the mean of its divisors is an integer number (222445116).

Almost surely, 2^444890231 is an apocalyptic number.

444890231 is a deficient number, since it is larger than the sum of its proper divisors (1).

444890231 is an equidigital number, since it uses as much as digits as its factorization.

444890231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 444890231 is about 21092.4211744408. The cubic root of 444890231 is about 763.3978922195.

The spelling of 444890231 in words is "four hundred forty-four million, eight hundred ninety thousand, two hundred thirty-one".