40404042242 has 8 divisors (see below), whose sum is σ = 60608263932. Its totient is φ = 20201287600.

The previous prime is 40404042233. The next prime is 40404042251. The reversal of 40404042242 is 24224040404.

It is an interprime number because it is at equal distance from previous prime (40404042233) and next prime (40404042251).

It can be written as a sum of positive squares in 2 ways, for example, as 32992726321 + 7411315921 = 181639^2 + 86089^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295109 + ... + 409752.

Almost surely, 2^40404042242 is an apocalyptic number.

40404042242 is a deficient number, since it is larger than the sum of its proper divisors (20204221690).

40404042242 is a wasteful number, since it uses less digits than its factorization.

40404042242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733524.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40404042242 its reverse (24224040404), we get a palindrome (64628082646).

The spelling of 40404042242 in words is "forty billion, four hundred four million, forty-two thousand, two hundred forty-two".