42427278 has 12 divisors (see below), whose sum is σ = 91925808. Its totient is φ = 14142420.

The previous prime is 42427243. The next prime is 42427321. The reversal of 42427278 is 87272424.

42427278 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 5 ways as a sum of consecutive naturals, for example, 1178518 + ... + 1178553.

It is an arithmetic number, because the mean of its divisors is an integer number (7660484).

Almost surely, 2^42427278 is an apocalyptic number.

42427278 is an abundant number, since it is smaller than the sum of its proper divisors (49498530).

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

42427278 is a wasteful number, since it uses less digits than its factorization.

42427278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357079 (or 2357076 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 42427278 is about 6513.6224944343. The cubic root of 42427278 is about 348.7774434025. Note that the first 3 decimals are identical.

The spelling of 42427278 in words is "forty-two million, four hundred twenty-seven thousand, two hundred seventy-eight".