42702686 has 16 divisors (see below), whose sum is σ = 71207808. Its totient is φ = 19072800.

The previous prime is 42702679. The next prime is 42702701. The reversal of 42702686 is 68620724.

It is a super-2 number, since 2×42702686² = 3647038783229192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25685 + ... + 27296.

It is an arithmetic number, because the mean of its divisors is an integer number (4450488).

Almost surely, 2^42702686 is an apocalyptic number.

42702686 is a deficient number, since it is larger than the sum of its proper divisors (28505122).

42702686 is a wasteful number, since it uses less digits than its factorization.

42702686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53027.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 42702686 is about 6534.7292216281. The cubic root of 42702686 is about 349.5304888183.

The spelling of 42702686 in words is "forty-two million, seven hundred two thousand, six hundred eighty-six".