444911493 has 8 divisors (see below), whose sum is σ = 638847328. Its totient is φ = 273791664.

The previous prime is 444911483. The next prime is 444911503. The reversal of 444911493 is 394119444.

It is an interprime number because it is at equal distance from previous prime (444911483) and next prime (444911503).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444911493 - 2⁴ = 444911477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 11407987 = 444911493 / (4 + 4 + 4 + 9 + 1 + 1 + 4 + 9 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444911413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5703955 + ... + 5704032.

It is an arithmetic number, because the mean of its divisors is an integer number (79855916).

Almost surely, 2^444911493 is an apocalyptic number.

It is an amenable number.

444911493 is a deficient number, since it is larger than the sum of its proper divisors (193935835).

444911493 is a wasteful number, since it uses less digits than its factorization.

444911493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11408003.

The product of its digits is 62208, while the sum is 39.

The square root of 444911493 is about 21092.9251883185. The cubic root of 444911493 is about 763.4100533522.

The spelling of 444911493 in words is "four hundred forty-four million, nine hundred eleven thousand, four hundred ninety-three".