999061800 has 384 divisors, whose sum is σ = 3685478400. Its totient is φ = 221184000.

The previous prime is 999061783. The next prime is 999061823. The reversal of 999061800 is 8160999.

999061800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3887272 + ... + 3887528.

It is an arithmetic number, because the mean of its divisors is an integer number (9597600).

Almost surely, 2^999061800 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 999061800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842739200).

999061800 is an abundant number, since it is smaller than the sum of its proper divisors (2686416600).

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

999061800 is a wasteful number, since it uses less digits than its factorization.

999061800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 999061800 is about 31607.9388761748. The cubic root of 999061800 is about 999.6871688135.

The spelling of 999061800 in words is "nine hundred ninety-nine million, sixty-one thousand, eight hundred".