17142858 has 12 divisors (see below), whose sum is σ = 37142898. Its totient is φ = 5714280.

The previous prime is 17142847. The next prime is 17142859. The reversal of 17142858 is 85824171.

It can be written as a sum of positive squares in only one way, i.e., 16670889 + 471969 = 4083^2 + 687^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (17142859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 476173 + ... + 476208.

Almost surely, 2^17142858 is an apocalyptic number.

17142858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

17142858 is an abundant number, since it is smaller than the sum of its proper divisors (20000040).

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

17142858 is a wasteful number, since it uses less digits than its factorization.

17142858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952389 (or 952386 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 17142858 is about 4140.3934595640. The cubic root of 17142858 is about 257.8464021753.

The spelling of 17142858 in words is "seventeen million, one hundred forty-two thousand, eight hundred fifty-eight".