744573381 has 8 divisors (see below), whose sum is σ = 1009039584. Its totient is φ = 488244720.

The previous prime is 744573373. The next prime is 744573391. The reversal of 744573381 is 183375447.

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

It is not a de Polignac number, because 744573381 - 2³ = 744573373 is a prime.

It is a super-2 number, since 2×744573381² = 1108779039387542322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744573331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034171 + ... + 2034536.

It is an arithmetic number, because the mean of its divisors is an integer number (126129948).

Almost surely, 2^744573381 is an apocalyptic number.

It is an amenable number.

744573381 is a deficient number, since it is larger than the sum of its proper divisors (264466203).

744573381 is a wasteful number, since it uses less digits than its factorization.

744573381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068771.

The product of its digits is 282240, while the sum is 42.

The square root of 744573381 is about 27286.8719533771. The cubic root of 744573381 is about 906.3636964542.

The spelling of 744573381 in words is "seven hundred forty-four million, five hundred seventy-three thousand, three hundred eighty-one".