312000256 has 36 divisors (see below), whose sum is σ = 626686312. Its totient is φ = 155022336.

The previous prime is 312000253. The next prime is 312000263. The reversal of 312000256 is 652000213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312000251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37990 + ... + 45466.

Almost surely, 2^312000256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312000256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313343156).

312000256 is an abundant number, since it is smaller than the sum of its proper divisors (314686056).

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

312000256 is an equidigital number, since it uses as much as digits as its factorization.

312000256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7656 (or 7642 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 312000256 is about 17663.5289792272. The cubic root of 312000256 is about 678.2424741049.

Adding to 312000256 its reverse (652000213), we get a palindrome (964000469).

The spelling of 312000256 in words is "three hundred twelve million, two hundred fifty-six", and thus it is an aban number.