773881344 has 320 divisors, whose sum is σ = 2519035200. Its totient is φ = 233570304.

The previous prime is 773881301. The next prime is 773881351. The reversal of 773881344 is 443188377.

It is a self number, because there is not a number n which added to its sum of digits gives 773881344.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8695252 + ... + 8695340.

It is an arithmetic number, because the mean of its divisors is an integer number (7871985).

Almost surely, 2^773881344 is an apocalyptic number.

773881344 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773881344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259517600).

773881344 is an abundant number, since it is smaller than the sum of its proper divisors (1745153856).

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

773881344 is a wasteful number, since it uses less digits than its factorization.

773881344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 148 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 773881344 is about 27818.7229038286. The cubic root of 773881344 is about 918.1031111485.

The spelling of 773881344 in words is "seven hundred seventy-three million, eight hundred eighty-one thousand, three hundred forty-four".