401014421 has 2 divisors, whose sum is σ = 401014422. Its totient is φ = 401014420.

The previous prime is 401014409. The next prime is 401014451. The reversal of 401014421 is 124410104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234243025 + 166771396 = 15305^2 + 12914^2 .

It is a cyclic number.

It is not a de Polignac number, because 401014421 - 2¹⁸ = 400752277 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401014421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401014451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200507210 + 200507211.

It is an arithmetic number, because the mean of its divisors is an integer number (200507211).

Almost surely, 2^401014421 is an apocalyptic number.

It is an amenable number.

401014421 is a deficient number, since it is larger than the sum of its proper divisors (1).

401014421 is an equidigital number, since it uses as much as digits as its factorization.

401014421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 401014421 is about 20025.3444664505. The cubic root of 401014421 is about 737.4286337531.

Adding to 401014421 its reverse (124410104), we get a palindrome (525424525).

The spelling of 401014421 in words is "four hundred one million, fourteen thousand, four hundred twenty-one".