4518720 has 112 divisors (see below), whose sum is σ = 15971520. Its totient is φ = 1202688.

The previous prime is 4518691. The next prime is 4518737. The reversal of 4518720 is 278154.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8379 + ... + 8901.

Almost surely, 2^4518720 is an apocalyptic number.

4518720 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 4518720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7985760).

4518720 is an abundant number, since it is smaller than the sum of its proper divisors (11452800).

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

4518720 is a wasteful number, since it uses less digits than its factorization.

4518720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4518720 is about 2125.7281105541. The cubic root of 4518720 is about 165.3249793443.

The spelling of 4518720 in words is "four million, five hundred eighteen thousand, seven hundred twenty".