620772030 has 48 divisors (see below), whose sum is σ = 1618587360. Its totient is φ = 165069504.

The previous prime is 620772029. The next prime is 620772041. The reversal of 620772030 is 30277026.

620772030 is a `hidden beast` number, since 620 + 7 + 7 + 2 + 0 + 30 = 666.

It is a super-4 number, since 4×620772030⁴ (a number of 36 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 620771985 and 620772003.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22704 + ... + 41916.

It is an arithmetic number, because the mean of its divisors is an integer number (33720570).

Almost surely, 2^620772030 is an apocalyptic number.

620772030 is an abundant number, since it is smaller than the sum of its proper divisors (997815330).

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

620772030 is a wasteful number, since it uses less digits than its factorization.

620772030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19585 (or 19582 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 620772030 is about 24915.2971084031. The cubic root of 620772030 is about 853.0556824089.

The spelling of 620772030 in words is "six hundred twenty million, seven hundred seventy-two thousand, thirty".