444242645 has 32 divisors (see below), whose sum is σ = 668805120. Its totient is φ = 275192640.

The previous prime is 444242597. The next prime is 444242651. The reversal of 444242645 is 546242444.

It is not a de Polignac number, because 444242645 - 2⁶ = 444242581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59216 + ... + 66294.

It is an arithmetic number, because the mean of its divisors is an integer number (20900160).

Almost surely, 2^444242645 is an apocalyptic number.

It is an amenable number.

444242645 is a deficient number, since it is larger than the sum of its proper divisors (224562475).

444242645 is a wasteful number, since it uses less digits than its factorization.

444242645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7265.

The product of its digits is 122880, while the sum is 35.

The square root of 444242645 is about 21077.0644303233. The cubic root of 444242645 is about 763.0273095343.

The spelling of 444242645 in words is "four hundred forty-four million, two hundred forty-two thousand, six hundred forty-five".