4544240 has 40 divisors (see below), whose sum is σ = 10819248. Its totient is φ = 1774080.

The previous prime is 4544233. The next prime is 4544261. The reversal of 4544240 is 424454.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780 + ... + 4100.

Almost surely, 2^4544240 is an apocalyptic number.

4544240 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 4544240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5409624).

4544240 is an abundant number, since it is smaller than the sum of its proper divisors (6275008).

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

4544240 is a wasteful number, since it uses less digits than its factorization.

4544240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4544240 is about 2131.7223083695. The cubic root of 4544240 is about 165.6356259944.

Adding to 4544240 its reverse (424454), we get a palindrome (4968694).

The spelling of 4544240 in words is "four million, five hundred forty-four thousand, two hundred forty".