402334121 has 16 divisors (see below), whose sum is σ = 490147200. Its totient is φ = 322379520.

The previous prime is 402334111. The next prime is 402334133. The reversal of 402334121 is 121433204.

It is a cyclic number.

It is not a de Polignac number, because 402334121 - 2⁶ = 402334057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402334093 and 402334102.

It is not an unprimeable number, because it can be changed into a prime (402334111) 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 15 ways as a sum of consecutive naturals, for example, 6386 + ... + 29076.

It is an arithmetic number, because the mean of its divisors is an integer number (30634200).

Almost surely, 2^402334121 is an apocalyptic number.

It is an amenable number.

402334121 is a deficient number, since it is larger than the sum of its proper divisors (87813079).

402334121 is a wasteful number, since it uses less digits than its factorization.

402334121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22864.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402334121 is about 20058.2681455803. The cubic root of 402334121 is about 738.2366836321.

Adding to 402334121 its reverse (121433204), we get a palindrome (523767325).

The spelling of 402334121 in words is "four hundred two million, three hundred thirty-four thousand, one hundred twenty-one".