780034680 has 48 divisors (see below), whose sum is σ = 2535113880. Its totient is φ = 208009152.

The previous prime is 780034669. The next prime is 780034709. The reversal of 780034680 is 86430087.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083022 + ... + 1083741.

Almost surely, 2^780034680 is an apocalyptic number.

It is an amenable number.

780034680 is an abundant number, since it is smaller than the sum of its proper divisors (1755079200).

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

780034680 is a wasteful number, since it uses less digits than its factorization.

780034680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166780 (or 2166773 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 780034680 is about 27929.1009522326. The cubic root of 780034680 is about 920.5300505746.

The spelling of 780034680 in words is "seven hundred eighty million, thirty-four thousand, six hundred eighty".