444789481 has 2 divisors, whose sum is σ = 444789482. Its totient is φ = 444789480.

The previous prime is 444789451. The next prime is 444789497. The reversal of 444789481 is 184987444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304153600 + 140635881 = 17440^2 + 11859^2 .

It is a cyclic number.

It is not a de Polignac number, because 444789481 - 2⁷ = 444789353 is a prime.

It is a super-2 number, since 2×444789481² = 395675364816498722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444789431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222394740 + 222394741.

It is an arithmetic number, because the mean of its divisors is an integer number (222394741).

Almost surely, 2^444789481 is an apocalyptic number.

It is an amenable number.

444789481 is a deficient number, since it is larger than the sum of its proper divisors (1).

444789481 is an equidigital number, since it uses as much as digits as its factorization.

444789481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 49.

The square root of 444789481 is about 21090.0327406100. The cubic root of 444789481 is about 763.3402614162.

The spelling of 444789481 in words is "four hundred forty-four million, seven hundred eighty-nine thousand, four hundred eighty-one".