4073220 has 96 divisors (see below), whose sum is σ = 13372800. Its totient is φ = 1026432.

The previous prime is 4073203. The next prime is 4073233. The reversal of 4073220 is 223704.

It is a happy number.

It is a super-2 number, since 2×4073220² = 33182242336800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 4073193 and 4073202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10062 + ... + 10458.

It is an arithmetic number, because the mean of its divisors is an integer number (139300).

Almost surely, 2^4073220 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 4073220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6686400).

4073220 is an abundant number, since it is smaller than the sum of its proper divisors (9299580).

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

4073220 is a wasteful number, since it uses less digits than its factorization.

4073220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 426 counting only the distinct ones).

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

The square root of 4073220 is about 2018.2219897722. The cubic root of 4073220 is about 159.7028338351.

Adding to 4073220 its reverse (223704), we get a palindrome (4296924).

The spelling of 4073220 in words is "four million, seventy-three thousand, two hundred twenty".