4681220 has 48 divisors (see below), whose sum is σ = 10536960. Its totient is φ = 1741824.

The previous prime is 4681211. The next prime is 4681241. The reversal of 4681220 is 221864.

4681220 = T₁₉ + T₂₀ + ... + T₃₀₃.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36797 + ... + 36923.

It is an arithmetic number, because the mean of its divisors is an integer number (219520).

Almost surely, 2^4681220 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 4681220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5268480).

4681220 is an abundant number, since it is smaller than the sum of its proper divisors (5855740).

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

4681220 is a wasteful number, since it uses less digits than its factorization.

4681220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4681220 is about 2163.6127195041. The cubic root of 4681220 is about 167.2834656493.

The spelling of 4681220 in words is "four million, six hundred eighty-one thousand, two hundred twenty".