990480228 has 24 divisors (see below), whose sum is σ = 2313417120. Its totient is φ = 329832000.

The previous prime is 990480217. The next prime is 990480247. The reversal of 990480228 is 822084099.

It is a self number, because there is not a number n which added to its sum of digits gives 990480228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28273 + ... + 52728.

It is an arithmetic number, because the mean of its divisors is an integer number (96392380).

Almost surely, 2^990480228 is an apocalyptic number.

It is an amenable number.

990480228 is an abundant number, since it is smaller than the sum of its proper divisors (1322936892).

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

990480228 is a wasteful number, since it uses less digits than its factorization.

990480228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82027 (or 82025 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 990480228 is about 31471.8958437524. The cubic root of 990480228 is about 996.8166195087.

The spelling of 990480228 in words is "nine hundred ninety million, four hundred eighty thousand, two hundred twenty-eight".