4200401 has 2 divisors, whose sum is σ = 4200402. Its totient is φ = 4200400.

The previous prime is 4200397. The next prime is 4200403. The reversal of 4200401 is 1040024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 358801 = 1960^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 4200401 - 2² = 4200397 is a prime.

Together with 4200403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4200403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100200 + 2100201.

It is an arithmetic number, because the mean of its divisors is an integer number (2100201).

Almost surely, 2^4200401 is an apocalyptic number.

It is an amenable number.

4200401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4200401 is an equidigital number, since it uses as much as digits as its factorization.

4200401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4200401 is about 2049.4879848391. The cubic root of 4200401 is about 161.3479992397.

Adding to 4200401 its reverse (1040024), we get a palindrome (5240425).

The spelling of 4200401 in words is "four million, two hundred thousand, four hundred one".