775214840 has 32 divisors (see below), whose sum is σ = 1772832960. Its totient is φ = 305001600.

The previous prime is 775214837. The next prime is 775214887. The reversal of 775214840 is 48412577.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 775214794 and 775214803.

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, 156416 + ... + 161295.

It is an arithmetic number, because the mean of its divisors is an integer number (55401030).

Almost surely, 2^775214840 is an apocalyptic number.

It is an amenable number.

775214840 is an abundant number, since it is smaller than the sum of its proper divisors (997618120).

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

775214840 is a wasteful number, since it uses less digits than its factorization.

775214840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317783 (or 317779 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 775214840 is about 27842.6801870797. The cubic root of 775214840 is about 918.6301446994.

The spelling of 775214840 in words is "seven hundred seventy-five million, two hundred fourteen thousand, eight hundred forty".