42807678 has 16 divisors (see below), whose sum is σ = 85775760. Its totient is φ = 14242496.

The previous prime is 42807659. The next prime is 42807697. The reversal of 42807678 is 87670824.

It is an interprime number because it is at equal distance from previous prime (42807659) and next prime (42807697).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 3063 + ... + 9746.

It is an arithmetic number, because the mean of its divisors is an integer number (5360985).

Almost surely, 2^42807678 is an apocalyptic number.

42807678 is an abundant number, since it is smaller than the sum of its proper divisors (42968082).

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

42807678 is a wasteful number, since it uses less digits than its factorization.

42807678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13371.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 42807678 is about 6542.7576754760. The cubic root of 42807678 is about 349.8167149199.

The spelling of 42807678 in words is "forty-two million, eight hundred seven thousand, six hundred seventy-eight".