402244023312 has 120 divisors (see below), whose sum is σ = 1193463943776. Its totient is φ = 126033251328.

The previous prime is 402244023301. The next prime is 402244023323. The reversal of 402244023312 is 213320442204.

402244023312 is a `hidden beast` number, since 4 + 0 + 224 + 402 + 3 + 31 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (402244023301) and next prime (402244023323).

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 23 ways as a sum of consecutive naturals, for example, 1822183 + ... + 2030969.

Almost surely, 2^402244023312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402244023312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596731971888).

402244023312 is an abundant number, since it is smaller than the sum of its proper divisors (791219920464).

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

402244023312 is a wasteful number, since it uses less digits than its factorization.

402244023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209605 (or 209596 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 402244023312 its reverse (213320442204), we get a palindrome (615564465516).

The spelling of 402244023312 in words is "four hundred two billion, two hundred forty-four million, twenty-three thousand, three hundred twelve".