780068450 has 48 divisors (see below), whose sum is σ = 1674696384. Its totient is φ = 264792000.

The previous prime is 780068449. The next prime is 780068453. The reversal of 780068450 is 54860087.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (780068453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24317 + ... + 46383.

It is an arithmetic number, because the mean of its divisors is an integer number (34889508).

Almost surely, 2^780068450 is an apocalyptic number.

780068450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

780068450 is an abundant number, since it is smaller than the sum of its proper divisors (894627934).

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

780068450 is a wasteful number, since it uses less digits than its factorization.

780068450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22187 (or 22182 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 780068450 is about 27929.7055122320. The cubic root of 780068450 is about 920.5433345358.

The spelling of 780068450 in words is "seven hundred eighty million, sixty-eight thousand, four hundred fifty".