774940320 has 576 divisors, whose sum is σ = 3424861440. Its totient is φ = 154828800.

The previous prime is 774940319. The next prime is 774940381. The reversal of 774940320 is 23049477.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3215400 + ... + 3215640.

It is an arithmetic number, because the mean of its divisors is an integer number (5945940).

Almost surely, 2^774940320 is an apocalyptic number.

774940320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774940320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712430720).

774940320 is an abundant number, since it is smaller than the sum of its proper divisors (2649921120).

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

774940320 is a wasteful number, since it uses less digits than its factorization.

774940320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 774940320 is about 27837.7499090713. The cubic root of 774940320 is about 918.5216964311.

Adding to 774940320 its reverse (23049477), we get a palindrome (797989797).

The spelling of 774940320 in words is "seven hundred seventy-four million, nine hundred forty thousand, three hundred twenty".