774388356 has 96 divisors (see below), whose sum is σ = 2152550400. Its totient is φ = 216492192.

The previous prime is 774388337. The next prime is 774388399. The reversal of 774388356 is 653883477.

It is a junction number, because it is equal to n+sod(n) for n = 774388299 and 774388308.

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, 191451 + ... + 195453.

It is an arithmetic number, because the mean of its divisors is an integer number (22422400).

Almost surely, 2^774388356 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 774388356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076275200).

774388356 is an abundant number, since it is smaller than the sum of its proper divisors (1378162044).

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

774388356 is a wasteful number, since it uses less digits than its factorization.

774388356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078 (or 4062 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The square root of 774388356 is about 27827.8341952801. The cubic root of 774388356 is about 918.3035672345.

The spelling of 774388356 in words is "seven hundred seventy-four million, three hundred eighty-eight thousand, three hundred fifty-six".