771404368 has 40 divisors (see below), whose sum is σ = 1715257280. Its totient is φ = 329218560.

The previous prime is 771404363. The next prime is 771404369. The reversal of 771404368 is 863404177.

It is a self number, because there is not a number n which added to its sum of digits gives 771404368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771404363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12703 + ... + 41281.

It is an arithmetic number, because the mean of its divisors is an integer number (42881432).

Almost surely, 2^771404368 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 771404368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857628640).

771404368 is an abundant number, since it is smaller than the sum of its proper divisors (943852912).

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

771404368 is a wasteful number, since it uses less digits than its factorization.

771404368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28835 (or 28829 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 771404368 is about 27774.1672782462. The cubic root of 771404368 is about 917.1225344815.

The spelling of 771404368 in words is "seven hundred seventy-one million, four hundred four thousand, three hundred sixty-eight".