620464208 has 80 divisors (see below), whose sum is σ = 1491321216. Its totient is φ = 243509760.

The previous prime is 620464121. The next prime is 620464253. The reversal of 620464208 is 802464026.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 189110 + ... + 192362.

Almost surely, 2^620464208 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 620464208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745660608).

620464208 is an abundant number, since it is smaller than the sum of its proper divisors (870857008).

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

620464208 is a wasteful number, since it uses less digits than its factorization.

620464208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412 (or 3406 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 620464208 is about 24909.1189727778. The cubic root of 620464208 is about 852.9146576264.

The spelling of 620464208 in words is "six hundred twenty million, four hundred sixty-four thousand, two hundred eight".