42782542 has 16 divisors (see below), whose sum is σ = 72267264. Its totient is φ = 18819000.

The previous prime is 42782539. The next prime is 42782543. The reversal of 42782542 is 24528724.

It is a junction number, because it is equal to n+sod(n) for n = 42782498 and 42782507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42782543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30684 + ... + 32047.

It is an arithmetic number, because the mean of its divisors is an integer number (4516704).

Almost surely, 2^42782542 is an apocalyptic number.

42782542 is a deficient number, since it is larger than the sum of its proper divisors (29484722).

42782542 is a wasteful number, since it uses less digits than its factorization.

42782542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62775.

The product of its digits is 35840, while the sum is 34.

The square root of 42782542 is about 6540.8364908473. The cubic root of 42782542 is about 349.7482325436.

The spelling of 42782542 in words is "forty-two million, seven hundred eighty-two thousand, five hundred forty-two".