990429484800 has 216 divisors, whose sum is σ = 3735570380416. Its totient is φ = 226383851520.

The previous prime is 990429484787. The next prime is 990429484801. The reversal of 990429484800 is 8484924099.

It is a super-2 number, since 2×990429484800² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990429484801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3550234 + ... + 3819033.

Almost surely, 2^990429484800 is an apocalyptic number.

It is an amenable number.

990429484800 is an abundant number, since it is smaller than the sum of its proper divisors (2745140895616).

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

990429484800 is a wasteful number, since it uses less digits than its factorization.

990429484800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369303 (or 7369284 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 990429484800 in words is "nine hundred ninety billion, four hundred twenty-nine million, four hundred eighty-four thousand, eight hundred".