312241442 has 4 divisors (see below), whose sum is σ = 468362166. Its totient is φ = 156120720.

The previous prime is 312241441. The next prime is 312241453. The reversal of 312241442 is 244142213.

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., 285914281 + 26327161 = 16909^2 + 5131^2 .

It is a super-3 number, since 3×312241442³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (312241441) 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 as a sum of consecutive naturals, namely, 78060359 + ... + 78060362.

Almost surely, 2^312241442 is an apocalyptic number.

312241442 is a deficient number, since it is larger than the sum of its proper divisors (156120724).

312241442 is a wasteful number, since it uses less digits than its factorization.

312241442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156120723.

The product of its digits is 1536, while the sum is 23.

The square root of 312241442 is about 17670.3548917389. The cubic root of 312241442 is about 678.4171966709.

Adding to 312241442 its reverse (244142213), we get a palindrome (556383655).

The spelling of 312241442 in words is "three hundred twelve million, two hundred forty-one thousand, four hundred forty-two".