402303134242 has 16 divisors (see below), whose sum is σ = 604670202432. Its totient is φ = 200746479600.

The previous prime is 402303134231. The next prime is 402303134243. The reversal of 402303134242 is 242431303204.

It is a self number, because there is not a number n which added to its sum of digits gives 402303134242.

It is not an unprimeable number, because it can be changed into a prime (402303134243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20178883 + ... + 20198809.

It is an arithmetic number, because the mean of its divisors is an integer number (37791887652).

Almost surely, 2^402303134242 is an apocalyptic number.

402303134242 is a deficient number, since it is larger than the sum of its proper divisors (202367068190).

402303134242 is a wasteful number, since it uses less digits than its factorization.

402303134242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39753.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 402303134242 its reverse (242431303204), we get a palindrome (644734437446).

The spelling of 402303134242 in words is "four hundred two billion, three hundred three million, one hundred thirty-four thousand, two hundred forty-two".