22142042434 has 8 divisors (see below), whose sum is σ = 33213982140. Its totient is φ = 11070715056.

The previous prime is 22142042383. The next prime is 22142042437. The reversal of 22142042434 is 43424024122.

It can be written as a sum of positive squares in 2 ways, for example, as 21595184209 + 546858225 = 146953^2 + 23385^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22142042437) 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, 48349 + ... + 215920.

Almost surely, 2^22142042434 is an apocalyptic number.

22142042434 is a deficient number, since it is larger than the sum of its proper divisors (11071939706).

22142042434 is a wasteful number, since it uses less digits than its factorization.

22142042434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306164.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22142042434 its reverse (43424024122), we get a palindrome (65566066556).

The spelling of 22142042434 in words is "twenty-two billion, one hundred forty-two million, forty-two thousand, four hundred thirty-four".