401711421 has 8 divisors (see below), whose sum is σ = 535818304. Its totient is φ = 267706080.

The previous prime is 401711371. The next prime is 401711447. The reversal of 401711421 is 124117104.

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

It is not a de Polignac number, because 401711421 - 2⁷ = 401711293 is a prime.

It is a super-2 number, since 2×401711421² = 322744131523678482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401721421) 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, 15616 + ... + 32361.

It is an arithmetic number, because the mean of its divisors is an integer number (66977288).

Almost surely, 2^401711421 is an apocalyptic number.

It is an amenable number.

401711421 is a deficient number, since it is larger than the sum of its proper divisors (134106883).

401711421 is a wasteful number, since it uses less digits than its factorization.

401711421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50771.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 401711421 is about 20042.7398576143. The cubic root of 401711421 is about 737.8556260939.

Adding to 401711421 its reverse (124117104), we get a palindrome (525828525).

The spelling of 401711421 in words is "four hundred one million, seven hundred eleven thousand, four hundred twenty-one".