40402412444441 has 4 divisors (see below), whose sum is σ = 41494369537572. Its totient is φ = 39310455351312.

The previous prime is 40402412444431. The next prime is 40402412444479. The reversal of 40402412444441 is 14444421420404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38251998432400 + 2150414012041 = 6184820^2 + 1466429^2 .

It is a cyclic number.

It is not a de Polignac number, because 40402412444441 - 2²⁶ = 40402345335577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40402412444395 and 40402412444404.

It is not an unprimeable number, because it can be changed into a prime (40402412444431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545978546510 + ... + 545978546583.

It is an arithmetic number, because the mean of its divisors is an integer number (10373592384393).

Almost surely, 2^{40402412444441} is an apocalyptic number.

It is an amenable number.

40402412444441 is a deficient number, since it is larger than the sum of its proper divisors (1091957093131).

40402412444441 is a wasteful number, since it uses less digits than its factorization.

40402412444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091957093130.

The product of its (nonzero) digits is 262144, while the sum is 38.

Adding to 40402412444441 its reverse (14444421420404), we get a palindrome (54846833864845).

The spelling of 40402412444441 in words is "forty trillion, four hundred two billion, four hundred twelve million, four hundred forty-four thousand, four hundred forty-one".