776680340 has 24 divisors (see below), whose sum is σ = 1637806632. Its totient is φ = 309381120.

The previous prime is 776680321. The next prime is 776680351. The reversal of 776680340 is 43086677.

776680340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 350588176 + 426092164 = 18724^2 + 20642^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75749 + ... + 85388.

It is an arithmetic number, because the mean of its divisors is an integer number (68241943).

Almost surely, 2^776680340 is an apocalyptic number.

It is an amenable number.

776680340 is an abundant number, since it is smaller than the sum of its proper divisors (861126292).

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

776680340 is a wasteful number, since it uses less digits than its factorization.

776680340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161387 (or 161385 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 776680340 is about 27868.9852703682. The cubic root of 776680340 is about 919.2086531590.

The spelling of 776680340 in words is "seven hundred seventy-six million, six hundred eighty thousand, three hundred forty".