313244242 has 4 divisors (see below), whose sum is σ = 469866366. Its totient is φ = 156622120.

The previous prime is 313244219. The next prime is 313244263. The reversal of 313244242 is 242442313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 185531641 + 127712601 = 13621^2 + 11301^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78311059 + ... + 78311062.

Almost surely, 2^313244242 is an apocalyptic number.

313244242 is a deficient number, since it is larger than the sum of its proper divisors (156622124).

313244242 is a wasteful number, since it uses less digits than its factorization.

313244242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156622123.

The product of its digits is 4608, while the sum is 25.

The square root of 313244242 is about 17698.7073539284. The cubic root of 313244242 is about 679.1426926754.

Adding to 313244242 its reverse (242442313), we get a palindrome (555686555).

It can be divided in two parts, 3132 and 44242, that added together give a palindrome (47374).

The spelling of 313244242 in words is "three hundred thirteen million, two hundred forty-four thousand, two hundred forty-two".