42782392 has 16 divisors (see below), whose sum is σ = 83705040. Its totient is φ = 20461056.

The previous prime is 42782359. The next prime is 42782401. The reversal of 42782392 is 29328724.

42782392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116073 + ... + 116440.

It is an arithmetic number, because the mean of its divisors is an integer number (5231565).

Almost surely, 2^42782392 is an apocalyptic number.

It is an amenable number.

42782392 is a deficient number, since it is larger than the sum of its proper divisors (40922648).

42782392 is a wasteful number, since it uses less digits than its factorization.

42782392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232542 (or 232538 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 42782392 is about 6540.8250244140. The cubic root of 42782392 is about 349.7478237920.

It can be divided in two parts, 4278 and 2392, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 42782392 in words is "forty-two million, seven hundred eighty-two thousand, three hundred ninety-two".