402144434216 has 32 divisors (see below), whose sum is σ = 868523427840. Its totient is φ = 170990543808.

The previous prime is 402144434213. The next prime is 402144434257. The reversal of 402144434216 is 612434441204.

It is not an unprimeable number, because it can be changed into a prime (402144434213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28265135 + ... + 28279358.

It is an arithmetic number, because the mean of its divisors is an integer number (27141357120).

Almost surely, 2^402144434216 is an apocalyptic number.

It is an amenable number.

402144434216 is an abundant number, since it is smaller than the sum of its proper divisors (466378993624).

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

402144434216 is a wasteful number, since it uses less digits than its factorization.

402144434216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56544633 (or 56544629 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 402144434216 in words is "four hundred two billion, one hundred forty-four million, four hundred thirty-four thousand, two hundred sixteen".