774684456 has 128 divisors (see below), whose sum is σ = 2434682880. Its totient is φ = 199938816.

The previous prime is 774684403. The next prime is 774684461. The reversal of 774684456 is 654486477.

It is a junction number, because it is equal to n+sod(n) for n = 774684399 and 774684408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98875 + ... + 106421.

It is an arithmetic number, because the mean of its divisors is an integer number (19020960).

Almost surely, 2^774684456 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 774684456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1217341440).

774684456 is an abundant number, since it is smaller than the sum of its proper divisors (1659998424).

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

774684456 is a wasteful number, since it uses less digits than its factorization.

774684456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623 (or 7619 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 51.

The square root of 774684456 is about 27833.1538996212. The cubic root of 774684456 is about 918.4205950949.

The spelling of 774684456 in words is "seven hundred seventy-four million, six hundred eighty-four thousand, four hundred fifty-six".