774384480 has 144 divisors (see below), whose sum is σ = 2666532960. Its totient is φ = 204632064.

The previous prime is 774384469. The next prime is 774384497. The reversal of 774384480 is 84483477.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160341 + ... + 165099.

It is an arithmetic number, because the mean of its divisors is an integer number (18517590).

Almost surely, 2^774384480 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 774384480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333266480).

774384480 is an abundant number, since it is smaller than the sum of its proper divisors (1892148480).

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

774384480 is a wasteful number, since it uses less digits than its factorization.

774384480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 774384480 is about 27827.7645526909. The cubic root of 774384480 is about 918.3020351219.

It can be divided in two parts, 77438 and 4480, that added together give a palindrome (81918).

The spelling of 774384480 in words is "seven hundred seventy-four million, three hundred eighty-four thousand, four hundred eighty".