400540134201 has 8 divisors (see below), whose sum is σ = 539238498240. Its totient is φ = 264434263152.

The previous prime is 400540134187. The next prime is 400540134209. The reversal of 400540134201 is 102431045004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400540134201 - 2³³ = 391950199609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400540134209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648122886 + ... + 648123503.

It is an arithmetic number, because the mean of its divisors is an integer number (67404812280).

Almost surely, 2^400540134201 is an apocalyptic number.

It is an amenable number.

400540134201 is a deficient number, since it is larger than the sum of its proper divisors (138698364039).

400540134201 is a wasteful number, since it uses less digits than its factorization.

400540134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296246495.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 400540134201 its reverse (102431045004), we get a palindrome (502971179205).

The spelling of 400540134201 in words is "four hundred billion, five hundred forty million, one hundred thirty-four thousand, two hundred one".