744428831 has 8 divisors (see below), whose sum is σ = 760387824. Its totient is φ = 728540800.

The previous prime is 744428821. The next prime is 744428837. The reversal of 744428831 is 138824447.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 744428831 - 2⁶ = 744428767 is a prime.

It is a super-2 number, since 2×744428831² = 1108348568848053122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744428837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3740 + ... + 38766.

It is an arithmetic number, because the mean of its divisors is an integer number (95048478).

Almost surely, 2^744428831 is an apocalyptic number.

744428831 is a deficient number, since it is larger than the sum of its proper divisors (15958993).

744428831 is a wasteful number, since it uses less digits than its factorization.

744428831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35481.

The product of its digits is 172032, while the sum is 41.

The square root of 744428831 is about 27284.2231151997. The cubic root of 744428831 is about 906.3050394412.

The spelling of 744428831 in words is "seven hundred forty-four million, four hundred twenty-eight thousand, eight hundred thirty-one".