4385280 has 80 divisors (see below), whose sum is σ = 14043744. Its totient is φ = 1167360.

The previous prime is 4385267. The next prime is 4385281. The reversal of 4385280 is 825834.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (4385281) 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 7 ways as a sum of consecutive naturals, for example, 7395 + ... + 7965.

Almost surely, 2^4385280 is an apocalyptic number.

4385280 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 4385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7021872).

4385280 is an abundant number, since it is smaller than the sum of its proper divisors (9658464).

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

4385280 is an equidigital number, since it uses as much as digits as its factorization.

4385280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 4385280 is about 2094.1060145083. The cubic root of 4385280 is about 163.6813164938.

The spelling of 4385280 in words is "four million, three hundred eighty-five thousand, two hundred eighty".