490138120 has 64 divisors (see below), whose sum is σ = 1127808000. Its totient is φ = 191662848.

The previous prime is 490138097. The next prime is 490138147. The reversal of 490138120 is 21831094.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343729 + ... + 345151.

It is an arithmetic number, because the mean of its divisors is an integer number (17622000).

Almost surely, 2^490138120 is an apocalyptic number.

490138120 is a gapful number since it is divisible by the number (40) 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 490138120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563904000).

490138120 is an abundant number, since it is smaller than the sum of its proper divisors (637669880).

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

490138120 is a wasteful number, since it uses less digits than its factorization.

490138120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 490138120 is about 22139.0632141471. The cubic root of 490138120 is about 788.4475842836.

The spelling of 490138120 in words is "four hundred ninety million, one hundred thirty-eight thousand, one hundred twenty".