4553440 has 48 divisors (see below), whose sum is σ = 10886400. Its totient is φ = 1799680.

The previous prime is 4553431. The next prime is 4553441. The reversal of 4553440 is 443554.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4553441) by changing a digit.

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, 23745 + ... + 23935.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^4553440 is an apocalyptic number.

4553440 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 4553440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5443200).

4553440 is an abundant number, since it is smaller than the sum of its proper divisors (6332960).

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

4553440 is a wasteful number, since it uses less digits than its factorization.

4553440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 4553440 is about 2133.8790968562. The cubic root of 4553440 is about 165.7473293486.

Adding to 4553440 its reverse (443554), we get a palindrome (4996994).

The spelling of 4553440 in words is "four million, five hundred fifty-three thousand, four hundred forty".