43442877242 has 4 divisors (see below), whose sum is σ = 65164315866. Its totient is φ = 21721438620.

The previous prime is 43442877187. The next prime is 43442877259. The reversal of 43442877242 is 24277824434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24277824434 = 2 ⋅12138912217.

It can be written as a sum of positive squares in only one way, i.e., 38746379281 + 4696497961 = 196841^2 + 68531^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10860719309 + ... + 10860719312.

Almost surely, 2^43442877242 is an apocalyptic number.

43442877242 is a deficient number, since it is larger than the sum of its proper divisors (21721438624).

43442877242 is a wasteful number, since it uses less digits than its factorization.

43442877242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21721438623.

The product of its digits is 2408448, while the sum is 47.

The spelling of 43442877242 in words is "forty-three billion, four hundred forty-two million, eight hundred seventy-seven thousand, two hundred forty-two".