42647286 has 64 divisors (see below), whose sum is σ = 99532800. Its totient is φ = 12045600.

The previous prime is 42647279. The next prime is 42647299. The reversal of 42647286 is 68274624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88795 + ... + 89273.

It is an arithmetic number, because the mean of its divisors is an integer number (1555200).

Almost surely, 2^42647286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42647286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49766400).

42647286 is an abundant number, since it is smaller than the sum of its proper divisors (56885514).

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

42647286 is a wasteful number, since it uses less digits than its factorization.

42647286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585.

The product of its digits is 129024, while the sum is 39.

The square root of 42647286 is about 6530.4889556602. The cubic root of 42647286 is about 349.3792698448.

The spelling of 42647286 in words is "forty-two million, six hundred forty-seven thousand, two hundred eighty-six".