4399380 has 48 divisors (see below), whose sum is σ = 13688640. Its totient is φ = 1173024.

The previous prime is 4399363. The next prime is 4399397. The reversal of 4399380 is 839934.

It is an interprime number because it is at equal distance from previous prime (4399363) and next prime (4399397).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3534 + ... + 4613.

It is an arithmetic number, because the mean of its divisors is an integer number (285180).

Almost surely, 2^4399380 is an apocalyptic number.

It is an amenable number.

4399380 is an abundant number, since it is smaller than the sum of its proper divisors (9289260).

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

4399380 is a wasteful number, since it uses less digits than its factorization.

4399380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165 (or 8157 counting only the distinct ones).

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

The square root of 4399380 is about 2097.4699044325. The cubic root of 4399380 is about 163.8565571042.

The spelling of 4399380 in words is "four million, three hundred ninety-nine thousand, three hundred eighty".