999423360 has 320 divisors, whose sum is σ = 3846260880. Its totient is φ = 245846016.

The previous prime is 999423349. The next prime is 999423367. The reversal of 999423360 is 63324999.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999423367) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 673179 + ... + 674661.

Almost surely, 2^999423360 is an apocalyptic number.

999423360 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999423360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923130440).

999423360 is an abundant number, since it is smaller than the sum of its proper divisors (2846837520).

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

999423360 is a wasteful number, since it uses less digits than its factorization.

999423360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 999423360 is about 31613.6578079791. The cubic root of 999423360 is about 999.8077497089.

The spelling of 999423360 in words is "nine hundred ninety-nine million, four hundred twenty-three thousand, three hundred sixty".