402330343 has 4 divisors (see below), whose sum is σ = 402646680. Its totient is φ = 402014008.

The previous prime is 402330337. The next prime is 402330349. The reversal of 402330343 is 343033204.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (402330337) and next prime (402330349).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402330343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402330349) 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 in 3 ways as a sum of consecutive naturals, for example, 156253 + ... + 158806.

It is an arithmetic number, because the mean of its divisors is an integer number (100661670).

Almost surely, 2^402330343 is an apocalyptic number.

402330343 is a deficient number, since it is larger than the sum of its proper divisors (316337).

402330343 is a wasteful number, since it uses less digits than its factorization.

402330343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316336.

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 402330343 is about 20058.1739697311. The cubic root of 402330343 is about 738.2343728935.

Adding to 402330343 its reverse (343033204), we get a palindrome (745363547).

The spelling of 402330343 in words is "four hundred two million, three hundred thirty thousand, three hundred forty-three".