19914142 has 16 divisors (see below), whose sum is σ = 30475152. Its totient is φ = 9757440.

The previous prime is 19914137. The next prime is 19914149. The reversal of 19914142 is 24141991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19914149) 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 7 ways as a sum of consecutive naturals, for example, 47092 + ... + 47512.

It is an arithmetic number, because the mean of its divisors is an integer number (1904697).

Almost surely, 2^19914142 is an apocalyptic number.

19914142 is a deficient number, since it is larger than the sum of its proper divisors (10561010).

19914142 is a wasteful number, since it uses less digits than its factorization.

19914142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843.

The product of its digits is 2592, while the sum is 31.

The square root of 19914142 is about 4462.5264144876. The cubic root of 19914142 is about 271.0527803952.

It can be divided in two parts, 199 and 14142, that added together give a palindrome (14341).

The spelling of 19914142 in words is "nineteen million, nine hundred fourteen thousand, one hundred forty-two".