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BaseRepresentation
bin10000000110110111010010
321221112001212
4100012313102
52040104133
6230300122
750614154
oct20066722
97845055
104222418
112424402
1214b7642
13b4ab95
15586148
hex406dd2

4222418 has 6 divisors (see below), whose sum is σ = 6337989. Its totient is φ = 2109756.

The previous prime is 4222399. The next prime is 4222483. The reversal of 4222418 is 8142224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2765569 + 1456849 = 1663^2 + 1207^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1453.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4222393 and 4222402.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2180 + ... + 3632.

Almost surely, 24222418 is an apocalyptic number.

4222418 is a deficient number, since it is larger than the sum of its proper divisors (2115571).

4222418 is an frugal number, since it uses more digits than its factorization.

4222418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908 (or 1455 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 4222418 is about 2054.8523061281. The cubic root of 4222418 is about 161.6294176177.

The spelling of 4222418 in words is "four million, two hundred twenty-two thousand, four hundred eighteen".

Divisors: 1 2 1453 2906 2111209 4222418