312630450 has 48 divisors (see below), whose sum is σ = 845811936. Its totient is φ = 75788800.

The previous prime is 312630449. The next prime is 312630463. The reversal of 312630450 is 54036213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312630450.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 93087 + ... + 96386.

It is an arithmetic number, because the mean of its divisors is an integer number (17621082).

Almost surely, 2^312630450 is an apocalyptic number.

312630450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312630450 is an abundant number, since it is smaller than the sum of its proper divisors (533181486).

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

312630450 is a wasteful number, since it uses less digits than its factorization.

312630450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189499 (or 189494 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 312630450 is about 17681.3588278729. The cubic root of 312630450 is about 678.6988165536.

Adding to 312630450 its reverse (54036213), we get a palindrome (366666663).

The spelling of 312630450 in words is "three hundred twelve million, six hundred thirty thousand, four hundred fifty".