40204044420424 has 8 divisors (see below), whose sum is σ = 75382583288310. Its totient is φ = 20102022210208.

The previous prime is 40204044420403. The next prime is 40204044420433. The reversal of 40204044420424 is 42402444040204.

It can be written as a sum of positive squares in only one way, i.e., 25317179697924 + 14886864722500 = 5031618^2 + 3858350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 40204044420424.

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, 2512752776269 + ... + 2512752776284.

Almost surely, 2^{40204044420424} is an apocalyptic number.

It is an amenable number.

40204044420424 is a deficient number, since it is larger than the sum of its proper divisors (35178538867886).

40204044420424 is a wasteful number, since it uses less digits than its factorization.

40204044420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025505552559 (or 5025505552555 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 40204044420424 its reverse (42402444040204), we get a palindrome (82606488460628).

The spelling of 40204044420424 in words is "forty trillion, two hundred four billion, forty-four million, four hundred twenty thousand, four hundred twenty-four".