999672450 has 96 divisors (see below), whose sum is σ = 2848615296. Its totient is φ = 227266560.

The previous prime is 999672449. The next prime is 999672461. The reversal of 999672450 is 54276999.

999672450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 999672393 and 999672402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200184 + ... + 205116.

It is an arithmetic number, because the mean of its divisors is an integer number (29673076).

Almost surely, 2^999672450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999672450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1424307648).

999672450 is an abundant number, since it is smaller than the sum of its proper divisors (1848942846).

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

999672450 is a wasteful number, since it uses less digits than its factorization.

999672450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148 (or 5143 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The square root of 999672450 is about 31617.5971572794. The cubic root of 999672450 is about 999.8908047435.

The spelling of 999672450 in words is "nine hundred ninety-nine million, six hundred seventy-two thousand, four hundred fifty".