312445427 has 8 divisors (see below), whose sum is σ = 366731616. Its totient is φ = 260572032.

The previous prime is 312445423. The next prime is 312445429. The reversal of 312445427 is 724544213.

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

It is not a de Polignac number, because 312445427 - 2² = 312445423 is a prime.

It is a super-3 number, since 3×312445427³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312445393 and 312445402.

It is not an unprimeable number, because it can be changed into a prime (312445421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602918 + ... + 603435.

It is an arithmetic number, because the mean of its divisors is an integer number (45841452).

Almost surely, 2^312445427 is an apocalyptic number.

312445427 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

312445427 is a deficient number, since it is larger than the sum of its proper divisors (54286189).

312445427 is a wasteful number, since it uses less digits than its factorization.

312445427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206397.

The product of its digits is 26880, while the sum is 32.

The square root of 312445427 is about 17676.1259047338. The cubic root of 312445427 is about 678.5648994723.

The spelling of 312445427 in words is "three hundred twelve million, four hundred forty-five thousand, four hundred twenty-seven".