402334417 has 2 divisors, whose sum is σ = 402334418. Its totient is φ = 402334416.

The previous prime is 402334391. The next prime is 402334441. The reversal of 402334417 is 714433204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326922561 + 75411856 = 18081^2 + 8684^2 .

It is a cyclic number.

It is not a de Polignac number, because 402334417 - 2¹¹ = 402332369 is a prime.

It is not a weakly prime, because it can be changed into another prime (402334447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201167208 + 201167209.

It is an arithmetic number, because the mean of its divisors is an integer number (201167209).

Almost surely, 2^402334417 is an apocalyptic number.

It is an amenable number.

402334417 is a deficient number, since it is larger than the sum of its proper divisors (1).

402334417 is an equidigital number, since it uses as much as digits as its factorization.

402334417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 402334417 is about 20058.2755240823. The cubic root of 402334417 is about 738.2368646740.

The spelling of 402334417 in words is "four hundred two million, three hundred thirty-four thousand, four hundred seventeen".