315443342402442 has 20 divisors (see below), whose sum is σ = 706826748716946. Its totient is φ = 105147780800760.

The previous prime is 315443342402437. The next prime is 315443342402449. The reversal of 315443342402442 is 244204243344513.

315443342402442 is a `hidden beast` number, since 3 + 1 + 54 + 4 + 334 + 24 + 0 + 244 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 315173305240641 + 270037161801 = 17753121^2 + 519651^2 .

It is not an unprimeable number, because it can be changed into a prime (315443342402449) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 973590562809 + ... + 973590563132.

Almost surely, 2^{315443342402442} is an apocalyptic number.

315443342402442 is an abundant number, since it is smaller than the sum of its proper divisors (391383406314504).

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

315443342402442 is a wasteful number, since it uses less digits than its factorization.

315443342402442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947181125955 (or 1947181125946 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 45.

Adding to 315443342402442 its reverse (244204243344513), we get a palindrome (559647585746955).

The spelling of 315443342402442 in words is "three hundred fifteen trillion, four hundred forty-three billion, three hundred forty-two million, four hundred two thousand, four hundred forty-two".