401272441 has 2 divisors, whose sum is σ = 401272442. Its totient is φ = 401272440.

The previous prime is 401272439. The next prime is 401272451. The reversal of 401272441 is 144272104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211411600 + 189860841 = 14540^2 + 13779^2 .

It is a cyclic number.

It is not a de Polignac number, because 401272441 - 2¹ = 401272439 is a prime.

It is a super-2 number, since 2×401272441² = 322039143812196962, which contains 22 as substring.

Together with 401272439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (401272451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200636220 + 200636221.

It is an arithmetic number, because the mean of its divisors is an integer number (200636221).

Almost surely, 2^401272441 is an apocalyptic number.

It is an amenable number.

401272441 is a deficient number, since it is larger than the sum of its proper divisors (1).

401272441 is an equidigital number, since it uses as much as digits as its factorization.

401272441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 401272441 is about 20031.7857666260. The cubic root of 401272441 is about 737.5867581934.

The spelling of 401272441 in words is "four hundred one million, two hundred seventy-two thousand, four hundred forty-one".