999930738 has 8 divisors (see below), whose sum is σ = 1999861488. Its totient is φ = 333310244.

The previous prime is 999930731. The next prime is 999930739. The reversal of 999930738 is 837039999.

It is a sphenic number, since it is the product of 3 distinct primes.

999930738 is an admirable number.

It is a super-2 number, since 2×999930738² = 1999722961594449288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999930731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83327556 + ... + 83327567.

It is an arithmetic number, because the mean of its divisors is an integer number (249982686).

Almost surely, 2^999930738 is an apocalyptic number.

999930738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

999930738 is a wasteful number, since it uses less digits than its factorization.

999930738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166655128.

The product of its (nonzero) digits is 3306744, while the sum is 57.

The square root of 999930738 is about 31621.6814543439. The cubic root of 999930738 is about 999.9769121336.

The spelling of 999930738 in words is "nine hundred ninety-nine million, nine hundred thirty thousand, seven hundred thirty-eight".