402313134340 has 48 divisors (see below), whose sum is σ = 913229115120. Its totient is φ = 147994145280.

The previous prime is 402313134317. The next prime is 402313134389. The reversal of 402313134340 is 43431313204.

It can be written as a sum of positive squares in 8 ways, for example, as 15419182276 + 386893952064 = 124174^2 + 622008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402313134299 and 402313134308.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2806191 + ... + 2946070.

It is an arithmetic number, because the mean of its divisors is an integer number (19025606565).

Almost surely, 2^402313134340 is an apocalyptic number.

It is an amenable number.

402313134340 is an abundant number, since it is smaller than the sum of its proper divisors (510915980780).

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

402313134340 is a wasteful number, since it uses less digits than its factorization.

402313134340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752552 (or 5752550 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 402313134340 its reverse (43431313204), we get a palindrome (445744447544).

The spelling of 402313134340 in words is "four hundred two billion, three hundred thirteen million, one hundred thirty-four thousand, three hundred forty".