42243156 has 72 divisors (see below), whose sum is σ = 113422400. Its totient is φ = 13219200.

The previous prime is 42243143. The next prime is 42243167. The reversal of 42243156 is 65134224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103080 + ... + 103488.

Almost surely, 2^42243156 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 42243156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56711200).

42243156 is an abundant number, since it is smaller than the sum of its proper divisors (71179244).

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

42243156 is a wasteful number, since it uses less digits than its factorization.

42243156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 42243156 is about 6499.4735171397. The cubic root of 42243156 is about 348.2721810391.

The spelling of 42243156 in words is "forty-two million, two hundred forty-three thousand, one hundred fifty-six".