4661220 has 24 divisors (see below), whose sum is σ = 13051584. Its totient is φ = 1242976.

The previous prime is 4661207. The next prime is 4661231. The reversal of 4661220 is 221664.

It is a happy number.

It is an unprimeable number.

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, 38784 + ... + 38903.

It is an arithmetic number, because the mean of its divisors is an integer number (543816).

Almost surely, 2^4661220 is an apocalyptic number.

It is an amenable number.

4661220 is an abundant number, since it is smaller than the sum of its proper divisors (8390364).

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

4661220 is a wasteful number, since it uses less digits than its factorization.

4661220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77699 (or 77697 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4661220 is about 2158.9858730432. The cubic root of 4661220 is about 167.0448921348.

Adding to 4661220 its reverse (221664), we get a palindrome (4882884).

The spelling of 4661220 in words is "four million, six hundred sixty-one thousand, two hundred twenty".