620509248 has 168 divisors, whose sum is σ = 1953780192. Its totient is φ = 194586624.

The previous prime is 620509243. The next prime is 620509261. The reversal of 620509248 is 842905026.

It is a happy number.

620509248 is a `hidden beast` number, since 620 + 5 + 0 + 9 + 24 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (620509243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263211 + ... + 265557.

It is an arithmetic number, because the mean of its divisors is an integer number (11629644).

Almost surely, 2^620509248 is an apocalyptic number.

620509248 is a gapful number since it is divisible by the number (68) 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 620509248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976890096).

620509248 is an abundant number, since it is smaller than the sum of its proper divisors (1333270944).

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

620509248 is a wasteful number, since it uses less digits than its factorization.

620509248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2369 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 620509248 is about 24910.0230429440. The cubic root of 620509248 is about 852.9352950492.

The spelling of 620509248 in words is "six hundred twenty million, five hundred nine thousand, two hundred forty-eight".