490238028900 has 81 divisors (see below), whose sum is σ = 1536689708281. Its totient is φ = 130724539680.

The previous prime is 490238028881. The next prime is 490238028949. The reversal of 490238028900 is 9820832094.

The square root of 490238028900 is 700170.

It is a perfect power (a square), and thus also a powerful number.

490238028900 is a `hidden beast` number, since 490 + 2 + 3 + 80 + 2 + 89 + 0 + 0 = 666.

It can be written as a sum of positive squares in only one way, i.e., 176485690404 + 313752338496 = 420102^2 + 560136^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20993431 + ... + 21016769.

Almost surely, 2^490238028900 is an apocalyptic number.

490238028900 is the 700170-th square number.

It is an amenable number.

490238028900 is an abundant number, since it is smaller than the sum of its proper divisors (1046451679381).

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

490238028900 is an equidigital number, since it uses as much as digits as its factorization.

490238028900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46698 (or 23349 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 490238028900 in words is "four hundred ninety billion, two hundred thirty-eight million, twenty-eight thousand, nine hundred".