775046740 has 24 divisors (see below), whose sum is σ = 1752798600. Its totient is φ = 286171008.

The previous prime is 775046731. The next prime is 775046777. The reversal of 775046740 is 47640577.

It can be written as a sum of positive squares in 4 ways, for example, as 5982916 + 769063824 = 2446^2 + 27732^2 .

It is a junction number, because it is equal to n+sod(n) for n = 775046693 and 775046702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490215 + ... + 1490734.

It is an arithmetic number, because the mean of its divisors is an integer number (73033275).

Almost surely, 2^775046740 is an apocalyptic number.

It is an amenable number.

775046740 is an abundant number, since it is smaller than the sum of its proper divisors (977751860).

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

775046740 is a wasteful number, since it uses less digits than its factorization.

775046740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980971 (or 2980969 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 775046740 is about 27839.6612766750. The cubic root of 775046740 is about 918.5637403590.

The spelling of 775046740 in words is "seven hundred seventy-five million, forty-six thousand, seven hundred forty".