780338012 has 48 divisors (see below), whose sum is σ = 1492888320. Its totient is φ = 355483392.

The previous prime is 780337993. The next prime is 780338023. The reversal of 780338012 is 210833087.

It is a super-2 number, since 2×780338012² = 1217854825944224288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 780338012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267353 + ... + 270255.

It is an arithmetic number, because the mean of its divisors is an integer number (31101840).

Almost surely, 2^780338012 is an apocalyptic number.

It is an amenable number.

780338012 is a deficient number, since it is larger than the sum of its proper divisors (712550308).

780338012 is a wasteful number, since it uses less digits than its factorization.

780338012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050 (or 3048 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 780338012 is about 27934.5308176099. The cubic root of 780338012 is about 920.6493572508.

The spelling of 780338012 in words is "seven hundred eighty million, three hundred thirty-eight thousand, twelve".