312670540 has 96 divisors (see below), whose sum is σ = 814262400. Its totient is φ = 98205696.

The previous prime is 312670531. The next prime is 312670541. The reversal of 312670540 is 45076213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 312670499 and 312670508.

It is not an unprimeable number, because it can be changed into a prime (312670541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270604 + ... + 271756.

It is an arithmetic number, because the mean of its divisors is an integer number (8481900).

Almost surely, 2^312670540 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 312670540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407131200).

312670540 is an abundant number, since it is smaller than the sum of its proper divisors (501591860).

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

312670540 is a wasteful number, since it uses less digits than its factorization.

312670540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 312670540 is about 17682.4924713684. The cubic root of 312670540 is about 678.7278261746.

The spelling of 312670540 in words is "three hundred twelve million, six hundred seventy thousand, five hundred forty".