720216000 has 336 divisors, whose sum is σ = 2946440640. Its totient is φ = 164505600.

The previous prime is 720215981. The next prime is 720216011. The reversal of 720216000 is 612027.

It is a happy number.

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

It is a super-2 number, since 2×720216000² = 1037422173312000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 503286 + ... + 504714.

Almost surely, 2^720216000 is an apocalyptic number.

720216000 is a gapful number since it is divisible by the number (70) 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 720216000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473220320).

720216000 is an abundant number, since it is smaller than the sum of its proper divisors (2226224640).

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

720216000 is a wasteful number, since it uses less digits than its factorization.

720216000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 720216000 is about 26836.8403505331. The cubic root of 720216000 is about 896.3705684450.

Adding to 720216000 its reverse (612027), we get a palindrome (720828027).

The spelling of 720216000 in words is "seven hundred twenty million, two hundred sixteen thousand".