402342343 has 8 divisors (see below), whose sum is σ = 434246288. Its totient is φ = 370574784.

The previous prime is 402342319. The next prime is 402342361. The reversal of 402342343 is 343243204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402342343 - 2⁹ = 402341831 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 (402342643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27921 + ... + 39802.

It is an arithmetic number, because the mean of its divisors is an integer number (54280786).

Almost surely, 2^402342343 is an apocalyptic number.

402342343 is a deficient number, since it is larger than the sum of its proper divisors (31903945).

402342343 is a wasteful number, since it uses less digits than its factorization.

402342343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68193.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 402342343 is about 20058.4730974219. The cubic root of 402342343 is about 738.2417124049.

Adding to 402342343 its reverse (343243204), we get a palindrome (745585547).

The spelling of 402342343 in words is "four hundred two million, three hundred forty-two thousand, three hundred forty-three".