402031122 has 32 divisors (see below), whose sum is σ = 861708672. Its totient is φ = 124717824.

The previous prime is 402031121. The next prime is 402031141. The reversal of 402031122 is 221130204.

It is not an unprimeable number, because it can be changed into a prime (402031121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34263 + ... + 44474.

It is an arithmetic number, because the mean of its divisors is an integer number (26928396).

Almost surely, 2^402031122 is an apocalyptic number.

402031122 is an abundant number, since it is smaller than the sum of its proper divisors (459677550).

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

402031122 is a wasteful number, since it uses less digits than its factorization.

402031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78802.

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

The square root of 402031122 is about 20050.7137528817. The cubic root of 402031122 is about 738.0513143570.

Adding to 402031122 its reverse (221130204), we get a palindrome (623161326).

The spelling of 402031122 in words is "four hundred two million, thirty-one thousand, one hundred twenty-two".