4332440 has 32 divisors (see below), whose sum is σ = 11141280. Its totient is φ = 1485312.

The previous prime is 4332409. The next prime is 4332443. The reversal of 4332440 is 442334.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a d-powerful number, because it can be written as 4 + 3⁵ + 3⁸ + 2¹⁷ + 4⁴ + 4¹¹ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4332443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7457 + ... + 8016.

It is an arithmetic number, because the mean of its divisors is an integer number (348165).

Almost surely, 2^4332440 is an apocalyptic number.

4332440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4332440 is an abundant number, since it is smaller than the sum of its proper divisors (6808840).

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

4332440 is a wasteful number, since it uses less digits than its factorization.

4332440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491 (or 15487 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4332440 is about 2081.4514166802. The cubic root of 4332440 is about 163.0212375254.

Adding to 4332440 its reverse (442334), we get a palindrome (4774774).

The spelling of 4332440 in words is "four million, three hundred thirty-two thousand, four hundred forty".