42228858 has 32 divisors (see below), whose sum is σ = 96915456. Its totient is φ = 12016368.

The previous prime is 42228847. The next prime is 42228869. The reversal of 42228858 is 85882224.

It is an interprime number because it is at equal distance from previous prime (42228847) and next prime (42228869).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9135 + ... + 12957.

It is an arithmetic number, because the mean of its divisors is an integer number (3028608).

Almost surely, 2^42228858 is an apocalyptic number.

42228858 is an abundant number, since it is smaller than the sum of its proper divisors (54686598).

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

42228858 is a wasteful number, since it uses less digits than its factorization.

42228858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098.

The product of its digits is 81920, while the sum is 39.

The square root of 42228858 is about 6498.3734888047. The cubic root of 42228858 is about 348.2328834895.

The spelling of 42228858 in words is "forty-two million, two hundred twenty-eight thousand, eight hundred fifty-eight".