444990489 has 16 divisors (see below), whose sum is σ = 604569600. Its totient is φ = 291082896.

The previous prime is 444990451. The next prime is 444990503. The reversal of 444990489 is 984099444.

It is not a de Polignac number, because 444990489 - 2⁸ = 444990233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444990439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32872 + ... + 44390.

It is an arithmetic number, because the mean of its divisors is an integer number (37785600).

Almost surely, 2^444990489 is an apocalyptic number.

It is an amenable number.

444990489 is a deficient number, since it is larger than the sum of its proper divisors (159579111).

444990489 is a wasteful number, since it uses less digits than its factorization.

444990489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11764.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 444990489 is about 21094.7976762044. The cubic root of 444990489 is about 763.4552329536.

The spelling of 444990489 in words is "four hundred forty-four million, nine hundred ninety thousand, four hundred eighty-nine".