402144424324 has 24 divisors (see below), whose sum is σ = 777547790208. Its totient is φ = 181016415360.

The previous prime is 402144424321. The next prime is 402144424327. The reversal of 402144424324 is 423424441204.

It is an interprime number because it is at equal distance from previous prime (402144424321) and next prime (402144424327).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 402144424324.

It is not an unprimeable number, because it can be changed into a prime (402144424321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 128561232 + ... + 128564359.

It is an arithmetic number, because the mean of its divisors is an integer number (32397824592).

Almost surely, 2^402144424324 is an apocalyptic number.

It is an amenable number.

402144424324 is a deficient number, since it is larger than the sum of its proper divisors (375403365884).

402144424324 is a wasteful number, since it uses less digits than its factorization.

402144424324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257125635 (or 257125633 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 402144424324 its reverse (423424441204), we get a palindrome (825568865528).

The spelling of 402144424324 in words is "four hundred two billion, one hundred forty-four million, four hundred twenty-four thousand, three hundred twenty-four".