402444024422 has 32 divisors (see below), whose sum is σ = 664448901120. Its totient is φ = 181292186880.

The previous prime is 402444024413. The next prime is 402444024427. The reversal of 402444024422 is 224420444204.

It is a super-2 number, since 2×402444024422² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402444024427) 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, 2518103 + ... + 2673149.

It is an arithmetic number, because the mean of its divisors is an integer number (20764028160).

Almost surely, 2^402444024422 is an apocalyptic number.

402444024422 is a deficient number, since it is larger than the sum of its proper divisors (262004876698).

402444024422 is a wasteful number, since it uses less digits than its factorization.

402444024422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156116.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 402444024422 its reverse (224420444204), we get a palindrome (626864468626).

The spelling of 402444024422 in words is "four hundred two billion, four hundred forty-four million, twenty-four thousand, four hundred twenty-two".