620435032 has 64 divisors (see below), whose sum is σ = 1369728000. Its totient is φ = 257976576.

The previous prime is 620435029. The next prime is 620435033. The reversal of 620435032 is 230534026.

It is a happy number.

620435032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 620434988 and 620435006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620435033) 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, 259828 + ... + 262204.

It is an arithmetic number, because the mean of its divisors is an integer number (21402000).

Almost surely, 2^620435032 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 620435032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684864000).

620435032 is an abundant number, since it is smaller than the sum of its proper divisors (749292968).

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

620435032 is a wasteful number, since it uses less digits than its factorization.

620435032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 620435032 is about 24908.5333169177. The cubic root of 620435032 is about 852.9012885887.

Adding to 620435032 its reverse (230534026), we get a palindrome (850969058).

The spelling of 620435032 in words is "six hundred twenty million, four hundred thirty-five thousand, thirty-two".