990461248 has 28 divisors (see below), whose sum is σ = 2246225632. Its totient is φ = 424483200.

The previous prime is 990461243. The next prime is 990461249. The reversal of 990461248 is 842164099.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990461243) 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 3 ways as a sum of consecutive naturals, for example, 1104978 + ... + 1105873.

It is an arithmetic number, because the mean of its divisors is an integer number (80222344).

Almost surely, 2^990461248 is an apocalyptic number.

It is an amenable number.

990461248 is an abundant number, since it is smaller than the sum of its proper divisors (1255764384).

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

990461248 is a wasteful number, since it uses less digits than its factorization.

990461248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210870 (or 2210860 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 990461248 is about 31471.5943034350. The cubic root of 990461248 is about 996.8102523278.

The spelling of 990461248 in words is "nine hundred ninety million, four hundred sixty-one thousand, two hundred forty-eight".