312628680 has 256 divisors, whose sum is σ = 1282982400. Its totient is φ = 65940480.

The previous prime is 312628637. The next prime is 312628681. The reversal of 312628680 is 86826213.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (312628681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96690 + ... + 99870.

It is an arithmetic number, because the mean of its divisors is an integer number (5011650).

Almost surely, 2^312628680 is an apocalyptic number.

312628680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312628680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641491200).

312628680 is an abundant number, since it is smaller than the sum of its proper divisors (970353720).

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

312628680 is a wasteful number, since it uses less digits than its factorization.

312628680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221 (or 3211 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 312628680 is about 17681.3087750879. The cubic root of 312628680 is about 678.6975357025.

The spelling of 312628680 in words is "three hundred twelve million, six hundred twenty-eight thousand, six hundred eighty".