775127040 has 256 divisors, whose sum is σ = 2642371200. Its totient is φ = 193462272.

The previous prime is 775127039. The next prime is 775127057. The reversal of 775127040 is 40721577.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (256).

It is a junction number, because it is equal to n+sod(n) for n = 775126992 and 775127010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9338839 + ... + 9338921.

Almost surely, 2^775127040 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 775127040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321185600).

775127040 is an abundant number, since it is smaller than the sum of its proper divisors (1867244160).

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

775127040 is an equidigital number, since it uses as much as digits as its factorization.

775127040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 775127040 is about 27841.1034264089. The cubic root of 775127040 is about 918.5954623689.

The spelling of 775127040 in words is "seven hundred seventy-five million, one hundred twenty-seven thousand, forty".