4724440 has 64 divisors (see below), whose sum is σ = 12441600. Its totient is φ = 1580928.

The previous prime is 4724429. The next prime is 4724441. The reversal of 4724440 is 444274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4724441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12981 + ... + 13339.

It is an arithmetic number, because the mean of its divisors is an integer number (194400).

Almost surely, 2^4724440 is an apocalyptic number.

4724440 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 4724440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6220800).

4724440 is an abundant number, since it is smaller than the sum of its proper divisors (7717160).

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

4724440 is a wasteful number, since it uses less digits than its factorization.

4724440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 4724440 is about 2173.5776958738. The cubic root of 4724440 is about 167.7967117825.

The spelling of 4724440 in words is "four million, seven hundred twenty-four thousand, four hundred forty".