42918232 has 32 divisors (see below), whose sum is σ = 92927520. Its totient is φ = 18201600.

The previous prime is 42918199. The next prime is 42918263. The reversal of 42918232 is 23281924.

It is a junction number, because it is equal to n+sod(n) for n = 42918194 and 42918203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482 + ... + 9382.

It is an arithmetic number, because the mean of its divisors is an integer number (2903985).

Almost surely, 2^42918232 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 42918232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46463760).

42918232 is an abundant number, since it is smaller than the sum of its proper divisors (50009288).

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

42918232 is a wasteful number, since it uses less digits than its factorization.

42918232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011 (or 8007 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 42918232 is about 6551.2008059592. The cubic root of 42918232 is about 350.1175985782.

The spelling of 42918232 in words is "forty-two million, nine hundred eighteen thousand, two hundred thirty-two".