402244312450 has 48 divisors (see below), whose sum is σ = 780857521920. Its totient is φ = 153871857920.

The previous prime is 402244312447. The next prime is 402244312471. The reversal of 402244312450 is 54213442204.

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, 6315162 + ... + 6378538.

It is an arithmetic number, because the mean of its divisors is an integer number (16267865040).

Almost surely, 2^402244312450 is an apocalyptic number.

402244312450 is a deficient number, since it is larger than the sum of its proper divisors (378613209470).

402244312450 is a wasteful number, since it uses less digits than its factorization.

402244312450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68931 (or 68926 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 402244312450 its reverse (54213442204), we get a palindrome (456457754654).

The spelling of 402244312450 in words is "four hundred two billion, two hundred forty-four million, three hundred twelve thousand, four hundred fifty".