990656298 has 64 divisors (see below), whose sum is σ = 2291932800. Its totient is φ = 316794240.

The previous prime is 990656291. The next prime is 990656311. The reversal of 990656298 is 892656099.

990656298 is a `hidden beast` number, since 9 + 9 + 0 + 6 + 5 + 629 + 8 = 666.

990656298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×990656298³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (990656291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253318 + ... + 257198.

It is an arithmetic number, because the mean of its divisors is an integer number (35811450).

Almost surely, 2^990656298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990656298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145966400).

990656298 is an abundant number, since it is smaller than the sum of its proper divisors (1301276502).

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

990656298 is a wasteful number, since it uses less digits than its factorization.

990656298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 990656298 is about 31474.6929770570. The cubic root of 990656298 is about 996.8756814662.

The spelling of 990656298 in words is "nine hundred ninety million, six hundred fifty-six thousand, two hundred ninety-eight".