402669343 has 2 divisors, whose sum is σ = 402669344. Its totient is φ = 402669342.

The previous prime is 402669317. The next prime is 402669353. The reversal of 402669343 is 343966204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402669343 - 2¹⁷ = 402538271 is a prime.

It is equal to p_21470968 and since 402669343 and 21470968 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402669313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201334671 + 201334672.

It is an arithmetic number, because the mean of its divisors is an integer number (201334672).

Almost surely, 2^402669343 is an apocalyptic number.

402669343 is a deficient number, since it is larger than the sum of its proper divisors (1).

402669343 is an equidigital number, since it uses as much as digits as its factorization.

402669343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 402669343 is about 20066.6226106936. The cubic root of 402669343 is about 738.4416579436.

The spelling of 402669343 in words is "four hundred two million, six hundred sixty-nine thousand, three hundred forty-three".