4320399 has 8 divisors (see below), whose sum is σ = 5830272. Its totient is φ = 2845400.

The previous prime is 4320383. The next prime is 4320419. The reversal of 4320399 is 9930234.

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

It is a cyclic number.

It is not a de Polignac number, because 4320399 - 2⁴ = 4320383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8427 + ... + 8924.

It is an arithmetic number, because the mean of its divisors is an integer number (728784).

Almost surely, 2^4320399 is an apocalyptic number.

4320399 is a deficient number, since it is larger than the sum of its proper divisors (1509873).

4320399 is a wasteful number, since it uses less digits than its factorization.

4320399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17437.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 4320399 is about 2078.5569513487. The cubic root of 4320399 is about 162.8700709739.

The spelling of 4320399 in words is "four million, three hundred twenty thousand, three hundred ninety-nine".