786040 has 32 divisors (see below), whose sum is σ = 1813680. Its totient is φ = 306432.

The previous prime is 786031. The next prime is 786047. The reversal of 786040 is 40687.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 785996 and 786014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (786047) by changing a digit.

786040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1492 + ... + 1948.

2⁷⁸⁶⁰⁴⁰ 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 786040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906840).

786040 is an abundant number, since it is smaller than the sum of its proper divisors (1027640).

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

786040 is a wasteful number, since it uses less digits than its factorization.

786040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 786040 is about 886.5889690268. The cubic root of 786040 is about 92.2886335296.

The spelling of 786040 in words is "seven hundred eighty-six thousand, forty".