620450000 has 60 divisors (see below), whose sum is σ = 1502677260. Its totient is φ = 248160000.

The previous prime is 620449993. The next prime is 620450011. The reversal of 620450000 is 54026.

It can be written as a sum of positive squares in 6 ways, for example, as 611473984 + 8976016 = 24728^2 + 2996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43796 + ... + 56204.

It is an arithmetic number, because the mean of its divisors is an integer number (25044621).

Almost surely, 2^620450000 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 620450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751338630).

620450000 is an abundant number, since it is smaller than the sum of its proper divisors (882227260).

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

620450000 is an equidigital number, since it uses as much as digits as its factorization.

620450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12442 (or 12416 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 620450000 is about 24908.8337743861. The cubic root of 620450000 is about 852.9081472836.

The spelling of 620450000 in words is "six hundred twenty million, four hundred fifty thousand".