402444330022 has 32 divisors (see below), whose sum is σ = 712863350784. Its totient is φ = 166747442400.

The previous prime is 402444329999. The next prime is 402444330031. The reversal of 402444330022 is 220033444204.

It is a happy number.

It is a super-2 number, since 2×402444330022² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18054 + ... + 897337.

It is an arithmetic number, because the mean of its divisors is an integer number (22276979712).

Almost surely, 2^402444330022 is an apocalyptic number.

402444330022 is a deficient number, since it is larger than the sum of its proper divisors (310419020762).

402444330022 is a wasteful number, since it uses less digits than its factorization.

402444330022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916444.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 402444330022 its reverse (220033444204), we get a palindrome (622477774226).

The spelling of 402444330022 in words is "four hundred two billion, four hundred forty-four million, three hundred thirty thousand, twenty-two".