400321201 has 8 divisors (see below), whose sum is σ = 463022784. Its totient is φ = 338997840.

The previous prime is 400321193. The next prime is 400321213. The reversal of 400321201 is 102123004.

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

It is a cyclic number.

It is not a de Polignac number, because 400321201 - 2³ = 400321193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400321001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343930 + ... + 345091.

It is an arithmetic number, because the mean of its divisors is an integer number (57877848).

Almost surely, 2^400321201 is an apocalyptic number.

It is an amenable number.

400321201 is a deficient number, since it is larger than the sum of its proper divisors (62701583).

400321201 is an equidigital number, since it uses as much as digits as its factorization.

400321201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689111.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 400321201 is about 20008.0284136144. The cubic root of 400321201 is about 737.0034660627.

Adding to 400321201 its reverse (102123004), we get a palindrome (502444205).

The spelling of 400321201 in words is "four hundred million, three hundred twenty-one thousand, two hundred one".