40444242242 has 8 divisors (see below), whose sum is σ = 61267020732. Its totient is φ = 20021902000.

The previous prime is 40444242217. The next prime is 40444242259. The reversal of 40444242242 is 24224244404.

It can be written as a sum of positive squares in 2 ways, for example, as 33203763961 + 7240478281 = 182219^2 + 85091^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 40444242199 and 40444242208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100109309 + ... + 100109712.

Almost surely, 2^40444242242 is an apocalyptic number.

40444242242 is a deficient number, since it is larger than the sum of its proper divisors (20822778490).

40444242242 is a wasteful number, since it uses less digits than its factorization.

40444242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200219124.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40444242242 its reverse (24224244404), we get a palindrome (64668486646).

The spelling of 40444242242 in words is "forty billion, four hundred forty-four million, two hundred forty-two thousand, two hundred forty-two".