4220370 has 192 divisors, whose sum is σ = 14774400. Its totient is φ = 846720.

The previous prime is 4220357. The next prime is 4220387. The reversal of 4220370 is 730224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 145516 + ... + 145544.

It is an arithmetic number, because the mean of its divisors is an integer number (76950).

Almost surely, 2^4220370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4220370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7387200).

4220370 is an abundant number, since it is smaller than the sum of its proper divisors (10554030).

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

4220370 is a wasteful number, since it uses less digits than its factorization.

4220370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4220370 is about 2054.3539130345. The cubic root of 4220370 is about 161.6032816786.

Adding to 4220370 its reverse (730224), we get a palindrome (4950594).

The spelling of 4220370 in words is "four million, two hundred twenty thousand, three hundred seventy".