990308700 has 288 divisors, whose sum is σ = 3419781120. Its totient is φ = 245203200.

The previous prime is 990308699. The next prime is 990308707. The reversal of 990308700 is 7803099.

It is a super-2 number, since 2×990308700² = 1961422642591380000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990308707) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2297485 + ... + 2297915.

It is an arithmetic number, because the mean of its divisors is an integer number (11874240).

Almost surely, 2^990308700 is an apocalyptic number.

990308700 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990308700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709890560).

990308700 is an abundant number, since it is smaller than the sum of its proper divisors (2429472420).

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

990308700 is a wasteful number, since it uses less digits than its factorization.

990308700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 990308700 is about 31469.1706277747. The cubic root of 990308700 is about 996.7590744151.

The spelling of 990308700 in words is "nine hundred ninety million, three hundred eight thousand, seven hundred".