43144222042 has 4 divisors (see below), whose sum is σ = 64716333066. Its totient is φ = 21572111020.

The previous prime is 43144222027. The next prime is 43144222049. The reversal of 43144222042 is 24022244134.

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., 42923966761 + 220255281 = 207181^2 + 14841^2 .

It is a super-2 number, since 2×43144222042² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43144222042.

It is not an unprimeable number, because it can be changed into a prime (43144222049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10786055509 + ... + 10786055512.

Almost surely, 2^43144222042 is an apocalyptic number.

43144222042 is a deficient number, since it is larger than the sum of its proper divisors (21572111024).

43144222042 is a wasteful number, since it uses less digits than its factorization.

43144222042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21572111023.

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

Adding to 43144222042 its reverse (24022244134), we get a palindrome (67166466176).

The spelling of 43144222042 in words is "forty-three billion, one hundred forty-four million, two hundred twenty-two thousand, forty-two".