42798258 has 48 divisors (see below), whose sum is σ = 96707520. Its totient is φ = 13662432.

The previous prime is 42798257. The next prime is 42798269. The reversal of 42798258 is 85289724.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42798257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84835 + ... + 85337.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^42798258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42798258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48353760).

42798258 is an abundant number, since it is smaller than the sum of its proper divisors (53909262).

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

42798258 is a wasteful number, since it uses less digits than its factorization.

42798258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 700 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 42798258 is about 6542.0377559290. The cubic root of 42798258 is about 349.7910535172.

The spelling of 42798258 in words is "forty-two million, seven hundred ninety-eight thousand, two hundred fifty-eight".