312234630 has 64 divisors (see below), whose sum is σ = 769443840. Its totient is φ = 81051264.

The previous prime is 312234599. The next prime is 312234647. The reversal of 312234630 is 36432213.

It is a self number, because there is not a number n which added to its sum of digits gives 312234630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322407 + ... + 323373.

It is an arithmetic number, because the mean of its divisors is an integer number (12022560).

Almost surely, 2^312234630 is an apocalyptic number.

312234630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312234630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384721920).

312234630 is an abundant number, since it is smaller than the sum of its proper divisors (457209210).

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

312234630 is a wasteful number, since it uses less digits than its factorization.

312234630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 312234630 is about 17670.1621384751. The cubic root of 312234630 is about 678.4122630833.

Adding to 312234630 its reverse (36432213), we get a palindrome (348666843).

It can be divided in two parts, 31223 and 4630, that added together give a palindrome (35853).

The spelling of 312234630 in words is "three hundred twelve million, two hundred thirty-four thousand, six hundred thirty".