402424031022 has 64 divisors (see below), whose sum is σ = 886370494464. Its totient is φ = 121028163840.

The previous prime is 402424030993. The next prime is 402424031041. The reversal of 402424031022 is 220130424204.

It is a junction number, because it is equal to n+sod(n) for n = 402424030983 and 402424031001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2717703 + ... + 2861949.

It is an arithmetic number, because the mean of its divisors is an integer number (13849538976).

Almost surely, 2^402424031022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402424031022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443185247232).

402424031022 is an abundant number, since it is smaller than the sum of its proper divisors (483946463442).

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

402424031022 is a wasteful number, since it uses less digits than its factorization.

402424031022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145073.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 402424031022 its reverse (220130424204), we get a palindrome (622554455226).

The spelling of 402424031022 in words is "four hundred two billion, four hundred twenty-four million, thirty-one thousand, twenty-two".