42886278 has 48 divisors (see below), whose sum is σ = 95786496. Its totient is φ = 13860720.

The previous prime is 42886271. The next prime is 42886279. The reversal of 42886278 is 87268824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42886271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137743 + ... + 138053.

It is an arithmetic number, because the mean of its divisors is an integer number (1995552).

Almost surely, 2^42886278 is an apocalyptic number.

42886278 is an abundant number, since it is smaller than the sum of its proper divisors (52900218).

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

42886278 is a wasteful number, since it uses less digits than its factorization.

42886278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 42886278 is about 6548.7615623108. The cubic root of 42886278 is about 350.0306857450.

The spelling of 42886278 in words is "forty-two million, eight hundred eighty-six thousand, two hundred seventy-eight".