786612840 has 128 divisors (see below), whose sum is σ = 2548627200. Its totient is φ = 193075200.

The previous prime is 786612833. The next prime is 786612851. The reversal of 786612840 is 48216687.

It is a junction number, because it is equal to n+sod(n) for n = 786612792 and 786612801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 937141 + ... + 937979.

It is an arithmetic number, because the mean of its divisors is an integer number (19911150).

Almost surely, 2^786612840 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 786612840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274313600).

786612840 is an abundant number, since it is smaller than the sum of its proper divisors (1762014360).

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

786612840 is a wasteful number, since it uses less digits than its factorization.

786612840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 786612840 is about 28046.6190475786. The cubic root of 786612840 is about 923.1104705543.

It can be divided in two parts, 7866 and 12840, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 786612840 in words is "seven hundred eighty-six million, six hundred twelve thousand, eight hundred forty".