990810464 has 24 divisors (see below), whose sum is σ = 2229324048. Its totient is φ = 424632960.

The previous prime is 990810463. The next prime is 990810481. The reversal of 990810464 is 464018099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990810463) 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, 2211407 + ... + 2211854.

It is an arithmetic number, because the mean of its divisors is an integer number (92888502).

Almost surely, 2^990810464 is an apocalyptic number.

It is an amenable number.

990810464 is an abundant number, since it is smaller than the sum of its proper divisors (1238513584).

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

990810464 is a wasteful number, since it uses less digits than its factorization.

990810464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423278 (or 4423270 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 990810464 is about 31477.1419287076. The cubic root of 990810464 is about 996.9273900710.

The spelling of 990810464 in words is "nine hundred ninety million, eight hundred ten thousand, four hundred sixty-four".