774729120 has 144 divisors (see below), whose sum is σ = 2682620640. Its totient is φ = 187799040.

The previous prime is 774729073. The next prime is 774729121. The reversal of 774729120 is 21927477.

774729120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (774729121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51411 + ... + 64749.

It is an arithmetic number, because the mean of its divisors is an integer number (18629310).

Almost surely, 2^774729120 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 774729120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341310320).

774729120 is an abundant number, since it is smaller than the sum of its proper divisors (1907891520).

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

774729120 is a wasteful number, since it uses less digits than its factorization.

774729120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13379 (or 13360 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 774729120 is about 27833.9562405347. The cubic root of 774729120 is about 918.4382450980.

The spelling of 774729120 in words is "seven hundred seventy-four million, seven hundred twenty-nine thousand, one hundred twenty".