312203442 has 8 divisors (see below), whose sum is σ = 624406896. Its totient is φ = 104067812.

The previous prime is 312203431. The next prime is 312203471. The reversal of 312203442 is 244302213.

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

312203442 is an admirable 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, 26016948 + ... + 26016959.

It is an arithmetic number, because the mean of its divisors is an integer number (78050862).

Almost surely, 2^312203442 is an apocalyptic number.

312203442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312203442 is a wasteful number, since it uses less digits than its factorization.

312203442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52033912.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 312203442 is about 17669.2796118008. The cubic root of 312203442 is about 678.3896742733.

Adding to 312203442 its reverse (244302213), we get a palindrome (556505655).

The spelling of 312203442 in words is "three hundred twelve million, two hundred three thousand, four hundred forty-two".