990465084 has 144 divisors (see below), whose sum is σ = 3142234368. Its totient is φ = 266312448.

The previous prime is 990465083. The next prime is 990465103. The reversal of 990465084 is 480564099.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990465083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111387 + ... + 119949.

It is an arithmetic number, because the mean of its divisors is an integer number (21821072).

Almost surely, 2^990465084 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 990465084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571117184).

990465084 is an abundant number, since it is smaller than the sum of its proper divisors (2151769284).

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

990465084 is a wasteful number, since it uses less digits than its factorization.

990465084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8606 (or 8592 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 990465084 is about 31471.6552472221. The cubic root of 990465084 is about 996.8115391893.

The spelling of 990465084 in words is "nine hundred ninety million, four hundred sixty-five thousand, eighty-four".