775126240 has 96 divisors (see below), whose sum is σ = 2098111680. Its totient is φ = 265089024.

The previous prime is 775126193. The next prime is 775126249. The reversal of 775126240 is 42621577.

It is a junction number, because it is equal to n+sod(n) for n = 775126196 and 775126205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775126249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685996 + ... + 687124.

It is an arithmetic number, because the mean of its divisors is an integer number (21855330).

Almost surely, 2^775126240 is an apocalyptic number.

775126240 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 775126240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1049055840).

775126240 is an abundant number, since it is smaller than the sum of its proper divisors (1322985440).

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

775126240 is a wasteful number, since it uses less digits than its factorization.

775126240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1756 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 775126240 is about 27841.0890591586. The cubic root of 775126240 is about 918.5951463447.

The spelling of 775126240 in words is "seven hundred seventy-five million, one hundred twenty-six thousand, two hundred forty".