744163866 has 48 divisors (see below), whose sum is σ = 1677631488. Its totient is φ = 238140000.

The previous prime is 744163843. The next prime is 744163877. The reversal of 744163866 is 668361447.

It is a happy number.

744163866 is a `hidden beast` number, since 7 + 4 + 4 + 1 + 638 + 6 + 6 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 65616 + ... + 76116.

It is an arithmetic number, because the mean of its divisors is an integer number (34950656).

Almost surely, 2^744163866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744163866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838815744).

744163866 is an abundant number, since it is smaller than the sum of its proper divisors (933467622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

744163866 is a wasteful number, since it uses less digits than its factorization.

744163866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667 (or 10664 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 744163866 is about 27279.3670381114. The cubic root of 744163866 is about 906.1974994493.

The spelling of 744163866 in words is "seven hundred forty-four million, one hundred sixty-three thousand, eight hundred sixty-six".