312420244 has 12 divisors (see below), whose sum is σ = 546905268. Its totient is φ = 156161600.

The previous prime is 312420191. The next prime is 312420257. The reversal of 312420244 is 442024213.

It is a happy number.

312420244 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 272250000 + 40170244 = 16500^2 + 6338^2 .

It is a super-2 number, since 2×312420244² = 195212817722039072, which contains 22 as substring.

It is a congruent number.

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, 5064 + ... + 25504.

It is an arithmetic number, because the mean of its divisors is an integer number (45575439).

Almost surely, 2^312420244 is an apocalyptic number.

It is an amenable number.

312420244 is a deficient number, since it is larger than the sum of its proper divisors (234485024).

312420244 is a wasteful number, since it uses less digits than its factorization.

312420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24266 (or 24264 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 312420244 is about 17675.4135453743. The cubic root of 312420244 is about 678.5466682790.

Adding to 312420244 its reverse (442024213), we get a palindrome (754444457).

The spelling of 312420244 in words is "three hundred twelve million, four hundred twenty thousand, two hundred forty-four".