620148312 has 120 divisors (see below), whose sum is σ = 2020683060. Its totient is φ = 177176160.

The previous prime is 620148311. The next prime is 620148349. The reversal of 620148312 is 213841026.

620148312 is a `hidden beast` number, since 620 + 1 + 4 + 8 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620148311) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 21987 + ... + 41517.

Almost surely, 2^620148312 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 620148312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010341530).

620148312 is an abundant number, since it is smaller than the sum of its proper divisors (1400534748).

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

620148312 is a wasteful number, since it uses less digits than its factorization.

620148312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19563 (or 19543 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 620148312 is about 24902.7771945219. Note that the first 3 decimals coincide. The cubic root of 620148312 is about 852.7698853396.

Adding to 620148312 its reverse (213841026), we get a palindrome (833989338).

The spelling of 620148312 in words is "six hundred twenty million, one hundred forty-eight thousand, three hundred twelve".