142790386 has 16 divisors (see below), whose sum is σ = 218611008. Its totient is φ = 69930000.

The previous prime is 142790383. The next prime is 142790399. The reversal of 142790386 is 683097241.

It is not an unprimeable number, because it can be changed into a prime (142790383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28291 + ... + 32953.

It is an arithmetic number, because the mean of its divisors is an integer number (13663188).

Almost surely, 2^142790386 is an apocalyptic number.

142790386 is a deficient number, since it is larger than the sum of its proper divisors (75820622).

142790386 is a wasteful number, since it uses less digits than its factorization.

142790386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 142790386 is about 11949.4931273255. The cubic root of 142790386 is about 522.6765179715.

The spelling of 142790386 in words is "one hundred forty-two million, seven hundred ninety thousand, three hundred eighty-six".