402401683 has 2 divisors, whose sum is σ = 402401684. Its totient is φ = 402401682.

The previous prime is 402401647. The next prime is 402401693. The reversal of 402401683 is 386104204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402401683 - 2¹⁷ = 402270611 is a prime.

It is a super-2 number, since 2×402401683² = 323854228962464978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402401693) 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, 201200841 + 201200842.

It is an arithmetic number, because the mean of its divisors is an integer number (201200842).

Almost surely, 2^402401683 is an apocalyptic number.

402401683 is a deficient number, since it is larger than the sum of its proper divisors (1).

402401683 is an equidigital number, since it uses as much as digits as its factorization.

402401683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 402401683 is about 20059.9522182881. The cubic root of 402401683 is about 738.2780041438.

Adding to 402401683 its reverse (386104204), we get a palindrome (788505887).

The spelling of 402401683 in words is "four hundred two million, four hundred one thousand, six hundred eighty-three".