400004550041 has 4 divisors (see below), whose sum is σ = 400006150452. Its totient is φ = 400002949632.

The previous prime is 400004549993. The next prime is 400004550103. The reversal of 400004550041 is 140055400004.

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 357693705625 + 42310844416 = 598075^2 + 205696^2 .

It is a cyclic number.

It is not a de Polignac number, because 400004550041 - 2⁶ = 400004549977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400004549989 and 400004550016.

It is not an unprimeable number, because it can be changed into a prime (400004550241) 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, 335240 + ... + 955193.

It is an arithmetic number, because the mean of its divisors is an integer number (100001537613).

Almost surely, 2^400004550041 is an apocalyptic number.

It is an amenable number.

400004550041 is a deficient number, since it is larger than the sum of its proper divisors (1600411).

400004550041 is a wasteful number, since it uses less digits than its factorization.

400004550041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600410.

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 400004550041 its reverse (140055400004), we get a palindrome (540059950045).

The spelling of 400004550041 in words is "four hundred billion, four million, five hundred fifty thousand, forty-one".