4744509 has 64 divisors (see below), whose sum is σ = 8847360. Its totient is φ = 2185920.

The previous prime is 4744469. The next prime is 4744511. The reversal of 4744509 is 9054474.

It is a happy number.

It is not a de Polignac number, because 4744509 - 2¹² = 4740413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

4744509 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4744509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4744589) 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 63 ways as a sum of consecutive naturals, for example, 100924 + ... + 100970.

It is an arithmetic number, because the mean of its divisors is an integer number (138240).

Almost surely, 2^4744509 is an apocalyptic number.

It is an amenable number.

4744509 is a deficient number, since it is larger than the sum of its proper divisors (4102851).

4744509 is a wasteful number, since it uses less digits than its factorization.

4744509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 4744509 is about 2178.1893857055. The cubic root of 4744509 is about 168.0339713048.

It can be divided in two parts, 4744 and 509, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 4744509 in words is "four million, seven hundred forty-four thousand, five hundred nine".