401332241 has 2 divisors, whose sum is σ = 401332242. Its totient is φ = 401332240.

The previous prime is 401332213. The next prime is 401332249. The reversal of 401332241 is 142233104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388878400 + 12453841 = 19720^2 + 3529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401332241 is a prime.

It is a super-2 number, since 2×401332241² = 322135135332164162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401332249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200666120 + 200666121.

It is an arithmetic number, because the mean of its divisors is an integer number (200666121).

Almost surely, 2^401332241 is an apocalyptic number.

It is an amenable number.

401332241 is a deficient number, since it is larger than the sum of its proper divisors (1).

401332241 is an equidigital number, since it uses as much as digits as its factorization.

401332241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 401332241 is about 20033.2783388042. The cubic root of 401332241 is about 737.6233962251.

Adding to 401332241 its reverse (142233104), we get a palindrome (543565345).

The spelling of 401332241 in words is "four hundred one million, three hundred thirty-two thousand, two hundred forty-one".