142338686 has 32 divisors (see below), whose sum is σ = 253482240. Its totient is φ = 58677696.

The previous prime is 142338659. The next prime is 142338689. The reversal of 142338686 is 686833241.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142338689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38570 + ... + 42098.

It is an arithmetic number, because the mean of its divisors is an integer number (7921320).

Almost surely, 2^142338686 is an apocalyptic number.

142338686 is a deficient number, since it is larger than the sum of its proper divisors (111143554).

142338686 is a wasteful number, since it uses less digits than its factorization.

142338686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648.

The product of its digits is 165888, while the sum is 41.

The square root of 142338686 is about 11930.5777731005. The cubic root of 142338686 is about 522.1247946175.

The spelling of 142338686 in words is "one hundred forty-two million, three hundred thirty-eight thousand, six hundred eighty-six".