999394368 has 336 divisors, whose sum is σ = 3353677824. Its totient is φ = 256942080.

The previous prime is 999394349. The next prime is 999394381. The reversal of 999394368 is 863493999.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

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, 12040855 + ... + 12040937.

It is an arithmetic number, because the mean of its divisors is an integer number (9981184).

Almost surely, 2^999394368 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 999394368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676838912).

999394368 is an abundant number, since it is smaller than the sum of its proper divisors (2354283456).

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

999394368 is a wasteful number, since it uses less digits than its factorization.

999394368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 143 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 60.

The square root of 999394368 is about 31613.1992686599. The cubic root of 999394368 is about 999.7980818985.

The spelling of 999394368 in words is "nine hundred ninety-nine million, three hundred ninety-four thousand, three hundred sixty-eight".