402144443330 has 96 divisors (see below), whose sum is σ = 907179751296. Its totient is φ = 125292561408.

The previous prime is 402144443303. The next prime is 402144443339. The reversal of 402144443330 is 33344441204.

It is not an unprimeable number, because it can be changed into a prime (402144443339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 799877 + ... + 1201703.

It is an arithmetic number, because the mean of its divisors is an integer number (9449789076).

Almost surely, 2^402144443330 is an apocalyptic number.

402144443330 is an abundant number, since it is smaller than the sum of its proper divisors (505035307966).

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

402144443330 is a wasteful number, since it uses less digits than its factorization.

402144443330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401916 (or 401887 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 402144443330 its reverse (33344441204), we get a palindrome (435488884534).

The spelling of 402144443330 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-three thousand, three hundred thirty".