490256620 has 96 divisors (see below), whose sum is σ = 1254758400. Its totient is φ = 157158144.

The previous prime is 490256617. The next prime is 490256651. The reversal of 490256620 is 26652094.

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, 208974 + ... + 211306.

It is an arithmetic number, because the mean of its divisors is an integer number (13070400).

Almost surely, 2^490256620 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 490256620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627379200).

490256620 is an abundant number, since it is smaller than the sum of its proper divisors (764501780).

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

490256620 is a wasteful number, since it uses less digits than its factorization.

490256620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 490256620 is about 22141.7393174068. The cubic root of 490256620 is about 788.5111197827.

The spelling of 490256620 in words is "four hundred ninety million, two hundred fifty-six thousand, six hundred twenty".