1008228858 has 64 divisors (see below), whose sum is σ = 2528692992. Its totient is φ = 260881920.

The previous prime is 1008228857. The next prime is 1008228887. The reversal of 1008228858 is 8588228001.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1008228853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11518 + ... + 46358.

It is an arithmetic number, because the mean of its divisors is an integer number (39510828).

Almost surely, 2^1008228858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1008228858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264346496).

1008228858 is an abundant number, since it is smaller than the sum of its proper divisors (1520464134).

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

1008228858 is a wasteful number, since it uses less digits than its factorization.

1008228858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34919.

The product of its (nonzero) digits is 81920, while the sum is 42.

The square root of 1008228858 is about 31752.6197029473. The cubic root of 1008228858 is about 1002.7354630854.

The spelling of 1008228858 in words is "one billion, eight million, two hundred twenty-eight thousand, eight hundred fifty-eight".