490311380 has 48 divisors (see below), whose sum is σ = 1116917760. Its totient is φ = 179722368.

The previous prime is 490311361. The next prime is 490311389. The reversal of 490311380 is 83113094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490311389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29357 + ... + 42923.

It is an arithmetic number, because the mean of its divisors is an integer number (23269120).

Almost surely, 2^490311380 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 490311380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558458880).

490311380 is an abundant number, since it is smaller than the sum of its proper divisors (626606380).

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

490311380 is a wasteful number, since it uses less digits than its factorization.

490311380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728 (or 13726 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 490311380 is about 22142.9758614329. The cubic root of 490311380 is about 788.5404766947.

The spelling of 490311380 in words is "four hundred ninety million, three hundred eleven thousand, three hundred eighty".