4420220 has 24 divisors (see below), whose sum is σ = 10608864. Its totient is φ = 1515456.

The previous prime is 4420219. The next prime is 4420231. The reversal of 4420220 is 220244.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 4420195 and 4420204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15647 + ... + 15926.

It is an arithmetic number, because the mean of its divisors is an integer number (442036).

Almost surely, 2^4420220 is an apocalyptic number.

It is an amenable number.

4420220 is an abundant number, since it is smaller than the sum of its proper divisors (6188644).

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

4420220 is a wasteful number, since it uses less digits than its factorization.

4420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31589 (or 31587 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4420220 is about 2102.4319251762. The cubic root of 4420220 is about 164.1148808405.

Adding to 4420220 its reverse (220244), we get a palindrome (4640464).

The spelling of 4420220 in words is "four million, four hundred twenty thousand, two hundred twenty".