402130122 has 16 divisors (see below), whose sum is σ = 804482112. Its totient is φ = 134006400.

The previous prime is 402130093. The next prime is 402130139. The reversal of 402130122 is 221031204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22938 + ... + 36474.

It is an arithmetic number, because the mean of its divisors is an integer number (50280132).

Almost surely, 2^402130122 is an apocalyptic number.

402130122 is an abundant number, since it is smaller than the sum of its proper divisors (402351990).

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

402130122 is a wasteful number, since it uses less digits than its factorization.

402130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18493.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 402130122 is about 20053.1823409652. The cubic root of 402130122 is about 738.1118909968. Note that the first 3 decimals are identical.

Adding to 402130122 its reverse (221031204), we get a palindrome (623161326).

It can be divided in two parts, 4021 and 30122, that added together give a palindrome (34143).

The spelling of 402130122 in words is "four hundred two million, one hundred thirty thousand, one hundred twenty-two".