999670038 has 16 divisors (see below), whose sum is σ = 2000239536. Its totient is φ = 333073440.

The previous prime is 999670037. The next prime is 999670073. The reversal of 999670038 is 830076999.

999670038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999670031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22573 + ... + 50088.

It is an arithmetic number, because the mean of its divisors is an integer number (125014971).

Almost surely, 2^999670038 is an apocalyptic number.

999670038 is an abundant number, since it is smaller than the sum of its proper divisors (1000569498).

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

999670038 is a wasteful number, since it uses less digits than its factorization.

999670038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74959.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 999670038 is about 31617.5590139403. The cubic root of 999670038 is about 999.8900005672.

The spelling of 999670038 in words is "nine hundred ninety-nine million, six hundred seventy thousand, thirty-eight".