620334720 has 128 divisors (see below), whose sum is σ = 2197080000. Its totient is φ = 165417984.

The previous prime is 620334719. The next prime is 620334721. The reversal of 620334720 is 27433026.

620334720 is a `hidden beast` number, since 620 + 3 + 34 + 7 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (620334719) and next prime (620334721).

It is a tau number, because it is divible by the number of its divisors (128).

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

It is not an unprimeable number, because it can be changed into a prime (620334721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670 + ... + 35229.

Almost surely, 2^620334720 is an apocalyptic number.

620334720 is a gapful number since it is divisible by the number (60) 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 620334720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098540000).

620334720 is an abundant number, since it is smaller than the sum of its proper divisors (1576745280).

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

620334720 is a wasteful number, since it uses less digits than its factorization.

620334720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35927 (or 35909 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 620334720 is about 24906.5196284025. The cubic root of 620334720 is about 852.8553203884.

Adding to 620334720 its reverse (27433026), we get a palindrome (647767746).

The spelling of 620334720 in words is "six hundred twenty million, three hundred thirty-four thousand, seven hundred twenty".