401437271 has 4 divisors (see below), whose sum is σ = 401496600. Its totient is φ = 401377944.

The previous prime is 401437261. The next prime is 401437307. The reversal of 401437271 is 172734104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401437271 is a prime.

It is a super-2 number, since 2×401437271² = 322303765095854882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401437261) 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 3 ways as a sum of consecutive naturals, for example, 17981 + ... + 33558.

It is an arithmetic number, because the mean of its divisors is an integer number (100374150).

Almost surely, 2^401437271 is an apocalyptic number.

401437271 is a deficient number, since it is larger than the sum of its proper divisors (59329).

401437271 is an equidigital number, since it uses as much as digits as its factorization.

401437271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59328.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 401437271 is about 20035.8995555478. The cubic root of 401437271 is about 737.6877367890.

The spelling of 401437271 in words is "four hundred one million, four hundred thirty-seven thousand, two hundred seventy-one".