779326240 has 288 divisors, whose sum is σ = 2470995072. Its totient is φ = 224870400.

The previous prime is 779326199. The next prime is 779326241. The reversal of 779326240 is 42623977.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 779326193 and 779326202.

It is not an unprimeable number, because it can be changed into a prime (779326241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12775810 + ... + 12775870.

It is an arithmetic number, because the mean of its divisors is an integer number (8579844).

Almost surely, 2^779326240 is an apocalyptic number.

779326240 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 779326240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235497536).

779326240 is an abundant number, since it is smaller than the sum of its proper divisors (1691668832).

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

779326240 is a wasteful number, since it uses less digits than its factorization.

779326240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 779326240 is about 27916.4152426489. The cubic root of 779326240 is about 920.2512861156.

The spelling of 779326240 in words is "seven hundred seventy-nine million, three hundred twenty-six thousand, two hundred forty".