4380399 has 20 divisors (see below), whose sum is σ = 6708240. Its totient is φ = 2846880.

The previous prime is 4380391. The next prime is 4380401. The reversal of 4380399 is 9930834.

It is not a de Polignac number, because 4380399 - 2³ = 4380391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380391) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2662 + ... + 3980.

It is an arithmetic number, because the mean of its divisors is an integer number (335412).

Almost surely, 2^4380399 is an apocalyptic number.

4380399 is a deficient number, since it is larger than the sum of its proper divisors (2327841).

4380399 is a wasteful number, since it uses less digits than its factorization.

4380399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 4380399 is about 2092.9402762621. The cubic root of 4380399 is about 163.6205658992.

The spelling of 4380399 in words is "four million, three hundred eighty thousand, three hundred ninety-nine".