315404042 has 8 divisors (see below), whose sum is σ = 473224356. Its totient is φ = 157662592.

The previous prime is 315404027. The next prime is 315404093. The reversal of 315404042 is 240404513.

315404042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 274200481 + 41203561 = 16559^2 + 6419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 315403999 and 315404017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8423 + ... + 26490.

Almost surely, 2^315404042 is an apocalyptic number.

315404042 is a deficient number, since it is larger than the sum of its proper divisors (157820314).

315404042 is a wasteful number, since it uses less digits than its factorization.

315404042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39432.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 315404042 is about 17759.6182954477. The cubic root of 315404042 is about 680.7000014798.

Adding to 315404042 its reverse (240404513), we get a palindrome (555808555).

The spelling of 315404042 in words is "three hundred fifteen million, four hundred four thousand, forty-two".