774850944 has 128 divisors (see below), whose sum is σ = 2373972480. Its totient is φ = 219340800.

The previous prime is 774850943. The next prime is 774850969. The reversal of 774850944 is 449058477.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×774850944² = 1200787970835382272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 774850893 and 774850902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774850943) 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 15 ways as a sum of consecutive naturals, for example, 302469 + ... + 305019.

It is an arithmetic number, because the mean of its divisors is an integer number (18546660).

Almost surely, 2^774850944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774850944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186986240).

774850944 is an abundant number, since it is smaller than the sum of its proper divisors (1599121536).

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

774850944 is a wasteful number, since it uses less digits than its factorization.

774850944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2676 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 774850944 is about 27836.1445606248. The cubic root of 774850944 is about 918.4863831950.

The spelling of 774850944 in words is "seven hundred seventy-four million, eight hundred fifty thousand, nine hundred forty-four".