402343122 has 16 divisors (see below), whose sum is σ = 806273280. Its totient is φ = 133849872.

The previous prime is 402343121. The next prime is 402343177. The reversal of 402343122 is 221343204.

It is not an unprimeable number, because it can be changed into a prime (402343121) 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 in 7 ways as a sum of consecutive naturals, for example, 62818 + ... + 68925.

It is an arithmetic number, because the mean of its divisors is an integer number (50392080).

Almost surely, 2^402343122 is an apocalyptic number.

402343122 is an abundant number, since it is smaller than the sum of its proper divisors (403930158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402343122 is a wasteful number, since it uses less digits than its factorization.

402343122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132257.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402343122 is about 20058.4925156404. The cubic root of 402343122 is about 738.2421888565.

Adding to 402343122 its reverse (221343204), we get a palindrome (623686326).

The spelling of 402343122 in words is "four hundred two million, three hundred forty-three thousand, one hundred twenty-two".