4535820 has 72 divisors (see below), whose sum is σ = 13942656. Its totient is φ = 1193472.

The previous prime is 4535819. The next prime is 4535831. The reversal of 4535820 is 285354.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20229 + ... + 20451.

It is an arithmetic number, because the mean of its divisors is an integer number (193648).

Almost surely, 2^4535820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4535820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6971328).

4535820 is an abundant number, since it is smaller than the sum of its proper divisors (9406836).

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

4535820 is a wasteful number, since it uses less digits than its factorization.

4535820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 4535820 is about 2129.7464637839. The cubic root of 4535820 is about 165.5332609315.

It can be divided in two parts, 4 and 535820, that added together give a square (535824 = 732²).

The spelling of 4535820 in words is "four million, five hundred thirty-five thousand, eight hundred twenty".