780338045 has 16 divisors (see below), whose sum is σ = 967991808. Its totient is φ = 603270720.

The previous prime is 780338033. The next prime is 780338051. The reversal of 780338045 is 540833087.

It is a happy number.

780338045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 780338045 - 2¹⁶ = 780272509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118787 + ... + 125183.

It is an arithmetic number, because the mean of its divisors is an integer number (60499488).

Almost surely, 2^780338045 is an apocalyptic number.

It is an amenable number.

780338045 is a deficient number, since it is larger than the sum of its proper divisors (187653763).

780338045 is a wasteful number, since it uses less digits than its factorization.

780338045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 780338045 is about 27934.5314082767. The cubic root of 780338045 is about 920.6493702287.

The spelling of 780338045 in words is "seven hundred eighty million, three hundred thirty-eight thousand, forty-five".