142866386 has 32 divisors (see below), whose sum is σ = 246734208. Its totient is φ = 61522560.

The previous prime is 142866379. The next prime is 142866391. The reversal of 142866386 is 683668241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21605 + ... + 27431.

It is an arithmetic number, because the mean of its divisors is an integer number (7710444).

Almost surely, 2^142866386 is an apocalyptic number.

142866386 is a deficient number, since it is larger than the sum of its proper divisors (103867822).

142866386 is a wasteful number, since it uses less digits than its factorization.

142866386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906.

The product of its digits is 331776, while the sum is 44.

The square root of 142866386 is about 11952.6727554970. The cubic root of 142866386 is about 522.7692328267.

The spelling of 142866386 in words is "one hundred forty-two million, eight hundred sixty-six thousand, three hundred eighty-six".