780105330 has 48 divisors (see below), whose sum is σ = 2103401664. Its totient is φ = 208027440.

The previous prime is 780105317. The next prime is 780105341. The reversal of 780105330 is 33501087.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 780105294 and 780105303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158086 + ... + 162945.

It is an arithmetic number, because the mean of its divisors is an integer number (43820868).

Almost surely, 2^780105330 is an apocalyptic number.

780105330 is an abundant number, since it is smaller than the sum of its proper divisors (1323296334).

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

780105330 is a wasteful number, since it uses less digits than its factorization.

780105330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321053 (or 321041 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 780105330 is about 27930.3657333734. The cubic root of 780105330 is about 920.5578414265.

The spelling of 780105330 in words is "seven hundred eighty million, one hundred five thousand, three hundred thirty".