408002401 has 2 divisors, whose sum is σ = 408002402. Its totient is φ = 408002400.

The previous prime is 408002393. The next prime is 408002407. The reversal of 408002401 is 104200804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349877025 + 58125376 = 18705^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 408002401 - 2³ = 408002393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (408002407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204001200 + 204001201.

It is an arithmetic number, because the mean of its divisors is an integer number (204001201).

Almost surely, 2^408002401 is an apocalyptic number.

It is an amenable number.

408002401 is a deficient number, since it is larger than the sum of its proper divisors (1).

408002401 is an equidigital number, since it uses as much as digits as its factorization.

408002401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 408002401 is about 20199.0693102430. The cubic root of 408002401 is about 741.6874087425.

The spelling of 408002401 in words is "four hundred eight million, two thousand, four hundred one".