20140223242 has 4 divisors (see below), whose sum is σ = 30210334866. Its totient is φ = 10070111620.

The previous prime is 20140223179. The next prime is 20140223291. The reversal of 20140223242 is 24232204102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16537702801 + 3602520441 = 128599^2 + 60021^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5035055809 + ... + 5035055812.

Almost surely, 2^20140223242 is an apocalyptic number.

20140223242 is a deficient number, since it is larger than the sum of its proper divisors (10070111624).

20140223242 is a wasteful number, since it uses less digits than its factorization.

20140223242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10070111623.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20140223242 its reverse (24232204102), we get a palindrome (44372427344).

The spelling of 20140223242 in words is "twenty billion, one hundred forty million, two hundred twenty-three thousand, two hundred forty-two".