779630940 has 96 divisors (see below), whose sum is σ = 2646040320. Its totient is φ = 189000000.

The previous prime is 779630927. The next prime is 779630941. The reversal of 779630940 is 49036977.

779630940 is a `hidden beast` number, since 7 + 7 + 9 + 630 + 9 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779630941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59686 + ... + 71565.

It is an arithmetic number, because the mean of its divisors is an integer number (27562920).

Almost surely, 2^779630940 is an apocalyptic number.

It is an amenable number.

779630940 is an abundant number, since it is smaller than the sum of its proper divisors (1866409380).

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

779630940 is a wasteful number, since it uses less digits than its factorization.

779630940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131280 (or 131272 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 779630940 is about 27921.8720719081. The cubic root of 779630940 is about 920.3712033881.

The spelling of 779630940 in words is "seven hundred seventy-nine million, six hundred thirty thousand, nine hundred forty".