780080000 has 240 divisors, whose sum is σ = 2270367000. Its totient is φ = 266112000.

The previous prime is 780079999. The next prime is 780080051. The reversal of 780080000 is 80087.

780080000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3919901 + ... + 3920099.

Almost surely, 2^780080000 is an apocalyptic number.

780080000 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 780080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135183500).

780080000 is an abundant number, since it is smaller than the sum of its proper divisors (1490287000).

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

780080000 is an equidigital number, since it uses as much as digits as its factorization.

780080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 780080000 is about 27929.9122805640. The cubic root of 780080000 is about 920.5478778222.

The spelling of 780080000 in words is "seven hundred eighty million, eighty thousand".