402232122 has 16 divisors (see below), whose sum is σ = 893849280. Its totient is φ = 134077356.

The previous prime is 402232091. The next prime is 402232151. The reversal of 402232122 is 221232204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 402232095 and 402232104.

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, 3724318 + ... + 3724425.

It is an arithmetic number, because the mean of its divisors is an integer number (55865580).

Almost surely, 2^402232122 is an apocalyptic number.

402232122 is an abundant number, since it is smaller than the sum of its proper divisors (491617158).

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

402232122 is a wasteful number, since it uses less digits than its factorization.

402232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448754 (or 7448748 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402232122 is about 20055.7254169477. The cubic root of 402232122 is about 738.1742928946.

Adding to 402232122 its reverse (221232204), we get a palindrome (623464326).

The spelling of 402232122 in words is "four hundred two million, two hundred thirty-two thousand, one hundred twenty-two".