490721019320 has 48 divisors (see below), whose sum is σ = 1284387162840. Its totient is φ = 168247205952.

The previous prime is 490721019317. The next prime is 490721019337. The reversal of 490721019320 is 23910127094.

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, 125181974 + ... + 125185893.

Almost surely, 2^490721019320 is an apocalyptic number.

490721019320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490721019320 is an abundant number, since it is smaller than the sum of its proper divisors (793666143520).

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

490721019320 is a wasteful number, since it uses less digits than its factorization.

490721019320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250367892 (or 250367881 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 490721019320 in words is "four hundred ninety billion, seven hundred twenty-one million, nineteen thousand, three hundred twenty".