4220000 has 60 divisors (see below), whose sum is σ = 10431036. Its totient is φ = 1680000.

The previous prime is 4219991. The next prime is 4220039. The reversal of 4220000 is 224.

4220000 = T₈₅ + T₈₆ + ... + T₂₉₅.

4220000 is nontrivially palindromic in base 15.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 4220000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19895 + ... + 20105.

Almost surely, 2^4220000 is an apocalyptic number.

4220000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5215518).

4220000 is an abundant number, since it is smaller than the sum of its proper divisors (6211036).

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

4220000 is an equidigital number, since it uses as much as digits as its factorization.

4220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 4220000 is about 2054.2638584174. The cubic root of 4220000 is about 161.5985589520.

Adding to 4220000 its reverse (224), we get a palindrome (4220224).

The spelling of 4220000 in words is "four million, two hundred twenty thousand".