400067040041 has 4 divisors (see below), whose sum is σ = 401345209812. Its totient is φ = 398788870272.

The previous prime is 400067039989. The next prime is 400067040071. The reversal of 400067040041 is 140040760004.

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 67091878441 + 332975161600 = 259021^2 + 577040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400067040041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400067040071) 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, 639084416 + ... + 639085041.

It is an arithmetic number, because the mean of its divisors is an integer number (100336302453).

Almost surely, 2^400067040041 is an apocalyptic number.

It is an amenable number.

400067040041 is a deficient number, since it is larger than the sum of its proper divisors (1278169771).

400067040041 is a wasteful number, since it uses less digits than its factorization.

400067040041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278169770.

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 400067040041 in words is "four hundred billion, sixty-seven million, forty thousand, forty-one".