20140142242 has 16 divisors (see below), whose sum is σ = 33010912512. Its totient is φ = 9139522320.

The previous prime is 20140142213. The next prime is 20140142333. The reversal of 20140142242 is 24224104102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740733 + ... + 767440.

It is an arithmetic number, because the mean of its divisors is an integer number (2063182032).

Almost surely, 2^20140142242 is an apocalyptic number.

20140142242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20140142242 is a deficient number, since it is larger than the sum of its proper divisors (12870770270).

20140142242 is a wasteful number, since it uses less digits than its factorization.

20140142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508793.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20140142242 its reverse (24224104102), we get a palindrome (44364246344).

The spelling of 20140142242 in words is "twenty billion, one hundred forty million, one hundred forty-two thousand, two hundred forty-two".