142390766 has 24 divisors (see below), whose sum is σ = 250268760. Its totient is φ = 60579792.

The previous prime is 142390757. The next prime is 142390811. The reversal of 142390766 is 667093241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8396 + ... + 18848.

It is an arithmetic number, because the mean of its divisors is an integer number (10427865).

Almost surely, 2^142390766 is an apocalyptic number.

142390766 is a deficient number, since it is larger than the sum of its proper divisors (107877994).

142390766 is a wasteful number, since it uses less digits than its factorization.

142390766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10608 (or 10601 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 142390766 is about 11932.7602003895. The cubic root of 142390766 is about 522.1884665638.

The spelling of 142390766 in words is "one hundred forty-two million, three hundred ninety thousand, seven hundred sixty-six".