990548592 has 120 divisors (see below), whose sum is σ = 2910178320. Its totient is φ = 289766400.

The previous prime is 990548591. The next prime is 990548593. The reversal of 990548592 is 295845099.

It is an interprime number because it is at equal distance from previous prime (990548591) and next prime (990548593).

It is a super-2 number, since 2×990548592² = 1962373026226364928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990548591) 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 23 ways as a sum of consecutive naturals, for example, 165492 + ... + 171372.

It is an arithmetic number, because the mean of its divisors is an integer number (24251486).

Almost surely, 2^990548592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990548592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455089160).

990548592 is an abundant number, since it is smaller than the sum of its proper divisors (1919629728).

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

990548592 is a wasteful number, since it uses less digits than its factorization.

990548592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943 (or 5926 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The square root of 990548592 is about 31472.9819368931. The cubic root of 990548592 is about 996.8395527626.

The spelling of 990548592 in words is "nine hundred ninety million, five hundred forty-eight thousand, five hundred ninety-two".