401440433 has 2 divisors, whose sum is σ = 401440434. Its totient is φ = 401440432.

The previous prime is 401440427. The next prime is 401440439. The reversal of 401440433 is 334044104.

It is a balanced prime because it is at equal distance from previous prime (401440427) and next prime (401440439).

It can be written as a sum of positive squares in only one way, i.e., 397723249 + 3717184 = 19943^2 + 1928^2 .

It is a cyclic number.

It is not a de Polignac number, because 401440433 - 2¹² = 401436337 is a prime.

It is a super-2 number, since 2×401440433² = 322308842494454978, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 401440399 and 401440408.

It is not a weakly prime, because it can be changed into another prime (401440439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200720216 + 200720217.

It is an arithmetic number, because the mean of its divisors is an integer number (200720217).

Almost surely, 2^401440433 is an apocalyptic number.

It is an amenable number.

401440433 is a deficient number, since it is larger than the sum of its proper divisors (1).

401440433 is an equidigital number, since it uses as much as digits as its factorization.

401440433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 401440433 is about 20035.9784637536. The cubic root of 401440433 is about 737.6896736316.

Adding to 401440433 its reverse (334044104), we get a palindrome (735484537).

The spelling of 401440433 in words is "four hundred one million, four hundred forty thousand, four hundred thirty-three".