402440222024 has 16 divisors (see below), whose sum is σ = 755197508220. Its totient is φ = 201054219840.

The previous prime is 402440222017. The next prime is 402440222059. The reversal of 402440222024 is 420222044204.

It can be written as a sum of positive squares in 2 ways, for example, as 296717699524 + 105722522500 = 544718^2 + 325150^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402440221984 and 402440222002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20726087 + ... + 20745494.

Almost surely, 2^402440222024 is an apocalyptic number.

It is an amenable number.

402440222024 is a deficient number, since it is larger than the sum of its proper divisors (352757286196).

402440222024 is a wasteful number, since it uses less digits than its factorization.

402440222024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41472800 (or 41472796 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 402440222024 its reverse (420222044204), we get a palindrome (822662266228).

The spelling of 402440222024 in words is "four hundred two billion, four hundred forty million, two hundred twenty-two thousand, twenty-four".