42656236 has 48 divisors (see below), whose sum is σ = 88764480. Its totient is φ = 17556480.

The previous prime is 42656219. The next prime is 42656249. The reversal of 42656236 is 63265624.

42656236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 83550 + ... + 84058.

It is an arithmetic number, because the mean of its divisors is an integer number (1849260).

Almost surely, 2^42656236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42656236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44382240).

42656236 is an abundant number, since it is smaller than the sum of its proper divisors (46108244).

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

42656236 is a wasteful number, since it uses less digits than its factorization.

42656236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 42656236 is about 6531.1741670239. The cubic root of 42656236 is about 349.4037084905.

It can be divided in two parts, 4265 and 6236, that added together give a palindrome (10501).

The spelling of 42656236 in words is "forty-two million, six hundred fifty-six thousand, two hundred thirty-six".