400235544271 has 4 divisors (see below), whose sum is σ = 400493929000. Its totient is φ = 399977159544.

The previous prime is 400235544259. The next prime is 400235544277. The reversal of 400235544271 is 172445532004.

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

It is a cyclic number.

It is not a de Polignac number, because 400235544271 - 2⁷ = 400235544143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400235544271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400235544277) 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, 129190041 + ... + 129193138.

It is an arithmetic number, because the mean of its divisors is an integer number (100123482250).

Almost surely, 2^400235544271 is an apocalyptic number.

400235544271 is a deficient number, since it is larger than the sum of its proper divisors (258384729).

400235544271 is a wasteful number, since it uses less digits than its factorization.

400235544271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258384728.

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 400235544271 in words is "four hundred billion, two hundred thirty-five million, five hundred forty-four thousand, two hundred seventy-one".