402142331244 has 48 divisors (see below), whose sum is σ = 954691194240. Its totient is φ = 131712599040.

The previous prime is 402142331203. The next prime is 402142331293. The reversal of 402142331244 is 442133241204.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1361599 + ... + 1630409.

It is an arithmetic number, because the mean of its divisors is an integer number (19889399880).

Almost surely, 2^402142331244 is an apocalyptic number.

It is an amenable number.

402142331244 is an abundant number, since it is smaller than the sum of its proper divisors (552548862996).

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

402142331244 is a wasteful number, since it uses less digits than its factorization.

402142331244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270990 (or 270988 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 402142331244 its reverse (442133241204), we get a palindrome (844275572448).

The spelling of 402142331244 in words is "four hundred two billion, one hundred forty-two million, three hundred thirty-one thousand, two hundred forty-four".