40402040420041 has 4 divisors (see below), whose sum is σ = 41387456040084. Its totient is φ = 39416624800000.

The previous prime is 40402040420033. The next prime is 40402040420047. The reversal of 40402040420041 is 14002404020404.

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 8898909474816 + 31503130945225 = 2983104^2 + 5612765^2 .

It is a cyclic number.

It is not a de Polignac number, because 40402040420041 - 2³ = 40402040420033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40402040419988 and 40402040420015.

It is not an unprimeable number, because it can be changed into a prime (40402040420047) 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, 492707809960 + ... + 492707810041.

It is an arithmetic number, because the mean of its divisors is an integer number (10346864010021).

Almost surely, 2^{40402040420041} is an apocalyptic number.

40402040420041 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40402040420041 is a deficient number, since it is larger than the sum of its proper divisors (985415620043).

40402040420041 is an equidigital number, since it uses as much as digits as its factorization.

40402040420041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985415620042.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 40402040420041 its reverse (14002404020404), we get a palindrome (54404444440445).

The spelling of 40402040420041 in words is "forty trillion, four hundred two billion, forty million, four hundred twenty thousand, forty-one".