620312 has 64 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 224640.

The previous prime is 620311. The next prime is 620317. The reversal of 620312 is 213026.

620312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620312.

It is not an unprimeable number, because it can be changed into a prime (620311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11678 + ... + 11730.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2⁶²⁰³¹² 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 620312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777600).

620312 is an abundant number, since it is smaller than the sum of its proper divisors (934888).

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

620312 is a wasteful number, since it uses less digits than its factorization.

620312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 620312 is about 787.5988826808. The cubic root of 620312 is about 85.2844908209.

Adding to 620312 its reverse (213026), we get a palindrome (833338).

The spelling of 620312 in words is "six hundred twenty thousand, three hundred twelve".