620247628 has 192 divisors, whose sum is σ = 1589575680. Its totient is φ = 203731200.

The previous prime is 620247623. The next prime is 620247637. The reversal of 620247628 is 826742026.

It is not an unprimeable number, because it can be changed into a prime (620247623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2358225 + ... + 2358487.

It is an arithmetic number, because the mean of its divisors is an integer number (8279040).

Almost surely, 2^620247628 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 620247628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794787840).

620247628 is an abundant number, since it is smaller than the sum of its proper divisors (969328052).

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

620247628 is a wasteful number, since it uses less digits than its factorization.

620247628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 620247628 is about 24904.7711894729. The cubic root of 620247628 is about 852.8154062639.

The spelling of 620247628 in words is "six hundred twenty million, two hundred forty-seven thousand, six hundred twenty-eight".