990498360 has 128 divisors (see below), whose sum is σ = 3089664000. Its totient is φ = 253754880.

The previous prime is 990498359. The next prime is 990498361. The reversal of 990498360 is 63894099.

It is a happy number.

990498360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (990498359) and next prime (990498361).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990498361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553387 + ... + 555173.

It is an arithmetic number, because the mean of its divisors is an integer number (24138000).

Almost surely, 2^990498360 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 990498360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544832000).

990498360 is an abundant number, since it is smaller than the sum of its proper divisors (2099165640).

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

990498360 is a wasteful number, since it uses less digits than its factorization.

990498360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1977 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 990498360 is about 31472.1839089695. The cubic root of 990498360 is about 996.8227021368.

The spelling of 990498360 in words is "nine hundred ninety million, four hundred ninety-eight thousand, three hundred sixty".