4485720 has 64 divisors (see below), whose sum is σ = 13932000. Its totient is φ = 1154048.

The previous prime is 4485707. The next prime is 4485721. The reversal of 4485720 is 275844.

4485720 is nontrivially palindromic in base 14.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4485721) 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, 2836 + ... + 4124.

Almost surely, 2^4485720 is an apocalyptic number.

4485720 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 4485720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6966000).

4485720 is an abundant number, since it is smaller than the sum of its proper divisors (9446280).

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

4485720 is a wasteful number, since it uses less digits than its factorization.

4485720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 4485720 is about 2117.9518408123. The cubic root of 4485720 is about 164.9215421297.

The spelling of 4485720 in words is "four million, four hundred eighty-five thousand, seven hundred twenty".