19836142 has 8 divisors (see below), whose sum is σ = 30088800. Its totient is φ = 9806544.

The previous prime is 19836139. The next prime is 19836149. The reversal of 19836142 is 24163891.

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

It is a junction number, because it is equal to n+sod(n) for n = 19836098 and 19836107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19836149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55542 + ... + 55897.

It is an arithmetic number, because the mean of its divisors is an integer number (3761100).

Almost surely, 2^19836142 is an apocalyptic number.

19836142 is a deficient number, since it is larger than the sum of its proper divisors (10252658).

19836142 is a wasteful number, since it uses less digits than its factorization.

19836142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111530.

The product of its digits is 10368, while the sum is 34.

The square root of 19836142 is about 4453.7783959241. The cubic root of 19836142 is about 270.6984295300.

The spelling of 19836142 in words is "nineteen million, eight hundred thirty-six thousand, one hundred forty-two".