8780020340 has 48 divisors (see below), whose sum is σ = 22692980352. Its totient is φ = 2778731136.

The previous prime is 8780020303. The next prime is 8780020369. The reversal of 8780020340 is 430200878.

It is a junction number, because it is equal to n+sod(n) for n = 8780020297 and 8780020306.

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, 2410274 + ... + 2413913.

It is an arithmetic number, because the mean of its divisors is an integer number (472770424).

Almost surely, 2^8780020340 is an apocalyptic number.

It is an amenable number.

8780020340 is an abundant number, since it is smaller than the sum of its proper divisors (13912960012).

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

8780020340 is a wasteful number, since it uses less digits than its factorization.

8780020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824216 (or 4824214 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 8780020340 is about 93701.7627368877. The cubic root of 8780020340 is about 2062.9965768021.

The spelling of 8780020340 in words is "eight billion, seven hundred eighty million, twenty thousand, three hundred forty".