444623493 has 4 divisors (see below), whose sum is σ = 592831328. Its totient is φ = 296415660.

The previous prime is 444623489. The next prime is 444623497. The reversal of 444623493 is 394326444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (444623489) and next prime (444623497).

It is not a de Polignac number, because 444623493 - 2² = 444623489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444623497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74103913 + ... + 74103918.

It is an arithmetic number, because the mean of its divisors is an integer number (148207832).

Almost surely, 2^444623493 is an apocalyptic number.

It is an amenable number.

444623493 is a deficient number, since it is larger than the sum of its proper divisors (148207835).

444623493 is a wasteful number, since it uses less digits than its factorization.

444623493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148207834.

The product of its digits is 248832, while the sum is 39.

The square root of 444623493 is about 21086.0971495438. The cubic root of 444623493 is about 763.2452943262.

The spelling of 444623493 in words is "four hundred forty-four million, six hundred twenty-three thousand, four hundred ninety-three".