312572420 has 48 divisors (see below), whose sum is σ = 701319360. Its totient is φ = 116671104.

The previous prime is 312572413. The next prime is 312572423. The reversal of 312572420 is 24275213.

It is a self number, because there is not a number n which added to its sum of digits gives 312572420.

It is not an unprimeable number, because it can be changed into a prime (312572423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19322 + ... + 31598.

It is an arithmetic number, because the mean of its divisors is an integer number (14610820).

Almost surely, 2^312572420 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 312572420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350659680).

312572420 is an abundant number, since it is smaller than the sum of its proper divisors (388746940).

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

312572420 is a wasteful number, since it uses less digits than its factorization.

312572420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12372 (or 12370 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 312572420 is about 17679.7177579282. The cubic root of 312572420 is about 678.6568209329.

The spelling of 312572420 in words is "three hundred twelve million, five hundred seventy-two thousand, four hundred twenty".