775940320 has 48 divisors (see below), whose sum is σ = 1882718208. Its totient is φ = 301985280.

The previous prime is 775940317. The next prime is 775940381. The reversal of 775940320 is 23049577.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 775940320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59616 + ... + 71455.

It is an arithmetic number, because the mean of its divisors is an integer number (39223296).

Almost surely, 2^775940320 is an apocalyptic number.

It is an amenable number.

775940320 is an abundant number, since it is smaller than the sum of its proper divisors (1106777888).

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

775940320 is a wasteful number, since it uses less digits than its factorization.

775940320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131123 (or 131115 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 775940320 is about 27855.7053401992. The cubic root of 775940320 is about 918.9166201270.

Adding to 775940320 its reverse (23049577), we get a palindrome (798989897).

The spelling of 775940320 in words is "seven hundred seventy-five million, nine hundred forty thousand, three hundred twenty".