142866858 has 16 divisors (see below), whose sum is σ = 285972480. Its totient is φ = 47582496.

The previous prime is 142866851. The next prime is 142866859. The reversal of 142866858 is 858668241.

It is a happy number.

142866858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142866858² = 40821878229584328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142866851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635 + ... + 16982.

It is an arithmetic number, because the mean of its divisors is an integer number (17873280).

Almost surely, 2^142866858 is an apocalyptic number.

142866858 is an abundant number, since it is smaller than the sum of its proper divisors (143105622).

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

142866858 is a wasteful number, since it uses less digits than its factorization.

142866858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901.

The product of its digits is 737280, while the sum is 48.

The square root of 142866858 is about 11952.6925000186. The cubic root of 142866858 is about 522.7698085320.

It can be divided in two parts, 1428 and 66858, that added together give a palindrome (68286).

The spelling of 142866858 in words is "one hundred forty-two million, eight hundred sixty-six thousand, eight hundred fifty-eight".