393636142 has 8 divisors (see below), whose sum is σ = 597088800. Its totient is φ = 194606544.

The previous prime is 393636137. The next prime is 393636143. The reversal of 393636142 is 241636393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393636143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1105542 + ... + 1105897.

It is an arithmetic number, because the mean of its divisors is an integer number (74636100).

Almost surely, 2^393636142 is an apocalyptic number.

393636142 is a deficient number, since it is larger than the sum of its proper divisors (203452658).

393636142 is a wasteful number, since it uses less digits than its factorization.

393636142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211530.

The product of its digits is 69984, while the sum is 37.

The square root of 393636142 is about 19840.2656736244. The cubic root of 393636142 is about 732.8779503801.

The spelling of 393636142 in words is "three hundred ninety-three million, six hundred thirty-six thousand, one hundred forty-two".