42158088 has 96 divisors (see below), whose sum is σ = 131414400. Its totient is φ = 11960064.

The previous prime is 42158069. The next prime is 42158089. The reversal of 42158088 is 88085124.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42158089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117253 + ... + 117611.

It is an arithmetic number, because the mean of its divisors is an integer number (1368900).

Almost surely, 2^42158088 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 42158088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65707200).

42158088 is an abundant number, since it is smaller than the sum of its proper divisors (89256312).

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

42158088 is a wasteful number, since it uses less digits than its factorization.

42158088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 42158088 is about 6492.9259968061. The cubic root of 42158088 is about 348.0382439143.

The spelling of 42158088 in words is "forty-two million, one hundred fifty-eight thousand, eighty-eight".