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4320000 = 283354

4320000 has 180 divisors, whose sum is σ = 15963640. Its totient is φ = 1152000.

The previous prime is 4319993. The next prime is 4320059. The reversal of 4320000 is 234.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 863998 + ... + 864002.

Almost surely, 24320000 is an apocalyptic number.

4320000 is a gapful number since it is divisible by the number (40) 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 4320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7981820).

4320000 is an abundant number, since it is smaller than the sum of its proper divisors (11643640).

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

4320000 is an frugal number, since it uses more digits than its factorization.

4320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 4320000 is about 2078.4609690827. The cubic root of 4320000 is about 162.8650569957.

Adding to 4320000 its reverse (234), we get a palindrome (4320234).

The spelling of 4320000 in words is "four million, three hundred twenty thousand".