4553820 has 72 divisors (see below), whose sum is σ = 14340144. Its totient is φ = 1213056.

The previous prime is 4553819. The next prime is 4553821. The reversal of 4553820 is 283554.

It is an interprime number because it is at equal distance from previous prime (4553819) and next prime (4553821).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4553821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4392 + ... + 5328.

Almost surely, 2^4553820 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 4553820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7170072).

4553820 is an abundant number, since it is smaller than the sum of its proper divisors (9786324).

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

4553820 is a wasteful number, since it uses less digits than its factorization.

4553820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 947 counting only the distinct ones).

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

The square root of 4553820 is about 2133.9681347199. The cubic root of 4553820 is about 165.7519399458.

The spelling of 4553820 in words is "four million, five hundred fifty-three thousand, eight hundred twenty".