4220312 has 16 divisors (see below), whose sum is σ = 8186400. Its totient is φ = 2037280.

The previous prime is 4220297. The next prime is 4220323. The reversal of 4220312 is 2130224.

It is a super-2 number, since 2×4220312² = 35622066754688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8864 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (511650).

Almost surely, 2^4220312 is an apocalyptic number.

It is an amenable number.

4220312 is a deficient number, since it is larger than the sum of its proper divisors (3966088).

4220312 is a wasteful number, since it uses less digits than its factorization.

4220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18226 (or 18222 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4220312 is about 2054.3397966257. The cubic root of 4220312 is about 161.6025413775.

Adding to 4220312 its reverse (2130224), we get a palindrome (6350536).

The spelling of 4220312 in words is "four million, two hundred twenty thousand, three hundred twelve".