8780340 has 48 divisors (see below), whose sum is σ = 24998400. Its totient is φ = 2302080.

The previous prime is 8780339. The next prime is 8780363. The reversal of 8780340 is 430878.

8780340 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8780298 and 8780307.

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, 2461 + ... + 4859.

It is an arithmetic number, because the mean of its divisors is an integer number (520800).

Almost surely, 2^8780340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8780340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12499200).

8780340 is an abundant number, since it is smaller than the sum of its proper divisors (16218060).

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

8780340 is a wasteful number, since it uses less digits than its factorization.

8780340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2470 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8780340 is about 2963.1638496715. The cubic root of 8780340 is about 206.3021612791.

The spelling of 8780340 in words is "eight million, seven hundred eighty thousand, three hundred forty".