990567320 has 16 divisors (see below), whose sum is σ = 2228776560. Its totient is φ = 396226912.

The previous prime is 990567317. The next prime is 990567323. The reversal of 990567320 is 23765099.

It is an interprime number because it is at equal distance from previous prime (990567317) and next prime (990567323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990567323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12382052 + ... + 12382131.

It is an arithmetic number, because the mean of its divisors is an integer number (139298535).

Almost surely, 2^990567320 is an apocalyptic number.

It is an amenable number.

990567320 is an abundant number, since it is smaller than the sum of its proper divisors (1238209240).

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

990567320 is a wasteful number, since it uses less digits than its factorization.

990567320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24764194 (or 24764190 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 990567320 is about 31473.2794605202. The cubic root of 990567320 is about 996.8458350367.

The spelling of 990567320 in words is "nine hundred ninety million, five hundred sixty-seven thousand, three hundred twenty".