402403122 has 24 divisors (see below), whose sum is σ = 951135120. Its totient is φ = 121940280.

The previous prime is 402403103. The next prime is 402403171. The reversal of 402403122 is 221304204.

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 = 402403095 and 402403104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015972 + ... + 1016367.

It is an arithmetic number, because the mean of its divisors is an integer number (39630630).

Almost surely, 2^402403122 is an apocalyptic number.

402403122 is an abundant number, since it is smaller than the sum of its proper divisors (548731998).

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

402403122 is a wasteful number, since it uses less digits than its factorization.

402403122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032358 (or 2032355 counting only the distinct ones).

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

The square root of 402403122 is about 20059.9880857392. The cubic root of 402403122 is about 738.2788841772.

Adding to 402403122 its reverse (221304204), we get a palindrome (623707326).

The spelling of 402403122 in words is "four hundred two million, four hundred three thousand, one hundred twenty-two".