253842858 has 48 divisors (see below), whose sum is σ = 593723520. Its totient is φ = 78140832.

The previous prime is 253842857. The next prime is 253842859. The reversal of 253842858 is 858248352.

253842858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (253842857) and next prime (253842859).

It is not an unprimeable number, because it can be changed into a prime (253842857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1435 + ... + 22577.

It is an arithmetic number, because the mean of its divisors is an integer number (12369240).

Almost surely, 2^253842858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253842858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296861760).

253842858 is an abundant number, since it is smaller than the sum of its proper divisors (339880662).

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

253842858 is a wasteful number, since it uses less digits than its factorization.

253842858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21203 (or 21200 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 253842858 is about 15932.4467047594. The cubic root of 253842858 is about 633.1719245800.

The spelling of 253842858 in words is "two hundred fifty-three million, eight hundred forty-two thousand, eight hundred fifty-eight".