4382440 has 24 divisors (see below), whose sum is σ = 9890370. Its totient is φ = 1747680.

The previous prime is 4382437. The next prime is 4382453. The reversal of 4382440 is 442834.

It can be written as a sum of positive squares in only one way, i.e., 3944196 + 438244 = 1986^2 + 662^2 .

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13075 + ... + 13405.

Almost surely, 2^4382440 is an apocalyptic number.

4382440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4382440 is an abundant number, since it is smaller than the sum of its proper divisors (5507930).

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

4382440 is an equidigital number, since it uses as much as digits as its factorization.

4382440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4382440 is about 2093.4278110315. The cubic root of 4382440 is about 163.6459743701.

The spelling of 4382440 in words is "four million, three hundred eighty-two thousand, four hundred forty".