990941846 has 16 divisors (see below), whose sum is σ = 1615119360. Its totient is φ = 454251240.

The previous prime is 990941773. The next prime is 990941851. The reversal of 990941846 is 648149099.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 990941794 and 990941803.

It is a congruent number.

It is an unprimeable number.

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, 419426 + ... + 421781.

It is an arithmetic number, because the mean of its divisors is an integer number (100944960).

Almost surely, 2^990941846 is an apocalyptic number.

990941846 is a deficient number, since it is larger than the sum of its proper divisors (624177514).

990941846 is a wasteful number, since it uses less digits than its factorization.

990941846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841259.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 990941846 is about 31479.2288024977. The cubic root of 990941846 is about 996.9714524927.

The spelling of 990941846 in words is "nine hundred ninety million, nine hundred forty-one thousand, eight hundred forty-six".