402401711 has 2 divisors, whose sum is σ = 402401712. Its totient is φ = 402401710.

The previous prime is 402401707. The next prime is 402401717. The reversal of 402401711 is 117104204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402401711 - 2² = 402401707 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402401717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201200855 + 201200856.

It is an arithmetic number, because the mean of its divisors is an integer number (201200856).

Almost surely, 2^402401711 is an apocalyptic number.

402401711 is a deficient number, since it is larger than the sum of its proper divisors (1).

402401711 is an equidigital number, since it uses as much as digits as its factorization.

402401711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 402401711 is about 20059.9529161960. The cubic root of 402401711 is about 738.2780212674.

Adding to 402401711 its reverse (117104204), we get a palindrome (519505915).

The spelling of 402401711 in words is "four hundred two million, four hundred one thousand, seven hundred eleven".