620805120 has 176 divisors, whose sum is σ = 2139033120. Its totient is φ = 152764416.

The previous prime is 620805103. The next prime is 620805127. The reversal of 620805120 is 21508026.

It is a super-3 number, since 3×620805120³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620805127) 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, 198126 + ... + 201234.

Almost surely, 2^620805120 is an apocalyptic number.

620805120 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 620805120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069516560).

620805120 is an abundant number, since it is smaller than the sum of its proper divisors (1518228000).

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

620805120 is a wasteful number, since it uses less digits than its factorization.

620805120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150 (or 3132 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 620805120 is about 24915.9611494319. The cubic root of 620805120 is about 853.0708394014.

The spelling of 620805120 in words is "six hundred twenty million, eight hundred five thousand, one hundred twenty".