402144343002 has 32 divisors (see below), whose sum is σ = 893707119360. Its totient is φ = 134040160800.

The previous prime is 402144342953. The next prime is 402144343031. The reversal of 402144343002 is 200343441204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 735598 + ... + 1159910.

It is an arithmetic number, because the mean of its divisors is an integer number (27928347480).

Almost surely, 2^402144343002 is an apocalyptic number.

402144343002 is an abundant number, since it is smaller than the sum of its proper divisors (491562776358).

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

402144343002 is a wasteful number, since it uses less digits than its factorization.

402144343002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441875 (or 441869 counting only the distinct ones).

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

Adding to 402144343002 its reverse (200343441204), we get a palindrome (602487784206).

The spelling of 402144343002 in words is "four hundred two billion, one hundred forty-four million, three hundred forty-three thousand, two".