786042 has 12 divisors (see below), whose sum is σ = 1703130. Its totient is φ = 262008.

The previous prime is 786031. The next prime is 786047. The reversal of 786042 is 240687.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 95481 = 831^2 + 309^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 785997 and 786015.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21817 + ... + 21852.

2⁷⁸⁶⁰⁴² is an apocalyptic number.

786042 is an abundant number, since it is smaller than the sum of its proper divisors (917088).

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

786042 is a wasteful number, since it uses less digits than its factorization.

786042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43677 (or 43674 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 786042 is about 886.5900969445. The cubic root of 786042 is about 92.2887118026.

It can be divided in two parts, 78604 and 2, that added together give a triangular number (78606 = T₃₉₆).

The spelling of 786042 in words is "seven hundred eighty-six thousand, forty-two".