4611820 has 24 divisors (see below), whose sum is σ = 9730224. Its totient is φ = 1836096.

The previous prime is 4611809. The next prime is 4611821. The reversal of 4611820 is 281164.

It is a junction number, because it is equal to n+sod(n) for n = 4611791 and 4611800.

It is not an unprimeable number, because it can be changed into a prime (4611821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5467 + ... + 6253.

It is an arithmetic number, because the mean of its divisors is an integer number (405426).

Almost surely, 2^4611820 is an apocalyptic number.

It is an amenable number.

4611820 is an abundant number, since it is smaller than the sum of its proper divisors (5118404).

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

4611820 is a wasteful number, since it uses less digits than its factorization.

4611820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 4611820 is about 2147.5148427892. The cubic root of 4611820 is about 166.4526764779.

Adding to 4611820 its reverse (281164), we get a palindrome (4892984).

The spelling of 4611820 in words is "four million, six hundred eleven thousand, eight hundred twenty".