4509720 has 48 divisors (see below), whose sum is σ = 14657760. Its totient is φ = 1202496.

The previous prime is 4509667. The next prime is 4509727. The reversal of 4509720 is 279054.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4509727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5904 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (305370).

Almost surely, 2^4509720 is an apocalyptic number.

4509720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4509720 is an abundant number, since it is smaller than the sum of its proper divisors (10148040).

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

4509720 is a wasteful number, since it uses less digits than its factorization.

4509720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12544 (or 12537 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 4509720 is about 2123.6101337110. The cubic root of 4509720 is about 165.2151463423.

The spelling of 4509720 in words is "four million, five hundred nine thousand, seven hundred twenty".