620548280 has 128 divisors (see below), whose sum is σ = 1683348480. Its totient is φ = 203089920.

The previous prime is 620548261. The next prime is 620548301. The reversal of 620548280 is 82845026.

620548280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 620548280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170237 + ... + 173843.

It is an arithmetic number, because the mean of its divisors is an integer number (13151160).

Almost surely, 2^620548280 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 620548280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841674240).

620548280 is an abundant number, since it is smaller than the sum of its proper divisors (1062800200).

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

620548280 is a wasteful number, since it uses less digits than its factorization.

620548280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669 (or 3665 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 620548280 is about 24910.8064903568. The cubic root of 620548280 is about 852.9531787861.

The spelling of 620548280 in words is "six hundred twenty million, five hundred forty-eight thousand, two hundred eighty".