990546628 has 24 divisors (see below), whose sum is σ = 1748242944. Its totient is φ = 491066400.

The previous prime is 990546569. The next prime is 990546629. The reversal of 990546628 is 826645099.

It is not an unprimeable number, because it can be changed into a prime (990546629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250926 + ... + 254842.

It is an arithmetic number, because the mean of its divisors is an integer number (72843456).

Almost surely, 2^990546628 is an apocalyptic number.

It is an amenable number.

990546628 is a deficient number, since it is larger than the sum of its proper divisors (757696316).

990546628 is a wasteful number, since it uses less digits than its factorization.

990546628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443 (or 4441 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 990546628 is about 31472.9507355126. The cubic root of 990546628 is about 996.8388939377.

The spelling of 990546628 in words is "nine hundred ninety million, five hundred forty-six thousand, six hundred twenty-eight".