40021011442 has 8 divisors (see below), whose sum is σ = 60071838300. Its totient is φ = 19997065344.

The previous prime is 40021011403. The next prime is 40021011449. The reversal of 40021011442 is 24411012004.

It can be written as a sum of positive squares in 2 ways, for example, as 39517861681 + 503149761 = 198791^2 + 22431^2 .

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 (40021011449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6716467 + ... + 6722422.

Almost surely, 2^40021011442 is an apocalyptic number.

40021011442 is a deficient number, since it is larger than the sum of its proper divisors (20050826858).

40021011442 is a wasteful number, since it uses less digits than its factorization.

40021011442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440380.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 40021011442 its reverse (24411012004), we get a palindrome (64432023446).

The spelling of 40021011442 in words is "forty billion, twenty-one million, eleven thousand, four hundred forty-two".