780081036 has 48 divisors (see below), whose sum is σ = 2098650624. Its totient is φ = 220905216.

The previous prime is 780081031. The next prime is 780081037. The reversal of 780081036 is 630180087.

It is a junction number, because it is equal to n+sod(n) for n = 780080988 and 780081006.

It is not an unprimeable number, because it can be changed into a prime (780081031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31600 + ... + 50583.

It is an arithmetic number, because the mean of its divisors is an integer number (43721888).

Almost surely, 2^780081036 is an apocalyptic number.

It is an amenable number.

780081036 is an abundant number, since it is smaller than the sum of its proper divisors (1318569588).

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

780081036 is a wasteful number, since it uses less digits than its factorization.

780081036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82310 (or 82308 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 780081036 is about 27929.9308269820. The cubic root of 780081036 is about 920.5482853390.

The spelling of 780081036 in words is "seven hundred eighty million, eighty-one thousand, thirty-six".