774021888 has 108 divisors (see below), whose sum is σ = 2303898688. Its totient is φ = 249661440.

The previous prime is 774021877. The next prime is 774021893. The reversal of 774021888 is 888120477.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66006 + ... + 76842.

Almost surely, 2^774021888 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 774021888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151949344).

774021888 is an abundant number, since it is smaller than the sum of its proper divisors (1529876800).

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

774021888 is a wasteful number, since it uses less digits than its factorization.

774021888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890 (or 10873 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 774021888 is about 27821.2488576627. The cubic root of 774021888 is about 918.1586864527.

The spelling of 774021888 in words is "seven hundred seventy-four million, twenty-one thousand, eight hundred eighty-eight".