4400385 has 16 divisors (see below), whose sum is σ = 7680960. Its totient is φ = 2133440.

The previous prime is 4400377. The next prime is 4400387. The reversal of 4400385 is 5830044.

It is a happy number.

It is not a de Polignac number, because 4400385 - 2³ = 4400377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4400387) by changing a digit.

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, 13170 + ... + 13499.

It is an arithmetic number, because the mean of its divisors is an integer number (480060).

Almost surely, 2^4400385 is an apocalyptic number.

It is an amenable number.

4400385 is a deficient number, since it is larger than the sum of its proper divisors (3280575).

4400385 is a wasteful number, since it uses less digits than its factorization.

4400385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26688.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 4400385 is about 2097.7094651071. The cubic root of 4400385 is about 163.8690333548.

The spelling of 4400385 in words is "four million, four hundred thousand, three hundred eighty-five".