315722042 has 16 divisors (see below), whose sum is σ = 491035392. Its totient is φ = 152088960.

The previous prime is 315722027. The next prime is 315722047. The reversal of 315722042 is 240227513.

It is not an unprimeable number, because it can be changed into a prime (315722047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858 + ... + 25290.

It is an arithmetic number, because the mean of its divisors is an integer number (30689712).

Almost surely, 2^315722042 is an apocalyptic number.

315722042 is a deficient number, since it is larger than the sum of its proper divisors (175313350).

315722042 is a wasteful number, since it uses less digits than its factorization.

315722042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22693.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 315722042 is about 17768.5689350606. The cubic root of 315722042 is about 680.9286921583.

Adding to 315722042 its reverse (240227513), we get a palindrome (555949555).

The spelling of 315722042 in words is "three hundred fifteen million, seven hundred twenty-two thousand, forty-two".