42855232 has 84 divisors (see below), whose sum is σ = 103554784. Its totient is φ = 17233920.

The previous prime is 42855221. The next prime is 42855251. The reversal of 42855232 is 23255824.

Its product of digits (19200) is a multiple of the sum of its prime factors (384).

It is a junction number, because it is equal to n+sod(n) for n = 42855194 and 42855203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129307 + ... + 129637.

Almost surely, 2^42855232 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 42855232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51777392).

42855232 is an abundant number, since it is smaller than the sum of its proper divisors (60699552).

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

42855232 is a wasteful number, since it uses less digits than its factorization.

42855232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 357 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 42855232 is about 6546.3907613280. The cubic root of 42855232 is about 349.9462012548.

The spelling of 42855232 in words is "forty-two million, eight hundred fifty-five thousand, two hundred thirty-two".