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4408220 = 225220411
BaseRepresentation
bin10000110100001110011100
322021221221102
4100310032130
52112030340
6234252232
752316645
oct20641634
98257842
104408220
112540a63
121587078
13bb461b
1482a6cc
155c1215
hex43439c

4408220 has 12 divisors (see below), whose sum is σ = 9257304. Its totient is φ = 1763280.

The previous prime is 4408199. The next prime is 4408267. The reversal of 4408220 is 228044.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 220411 = 4408220 / (4 + 4 + 0 + 8 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4408192 and 4408201.

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, 110186 + ... + 110225.

It is an arithmetic number, because the mean of its divisors is an integer number (771442).

Almost surely, 24408220 is an apocalyptic number.

It is an amenable number.

4408220 is an abundant number, since it is smaller than the sum of its proper divisors (4849084).

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

4408220 is a wasteful number, since it uses less digits than its factorization.

4408220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220420 (or 220418 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4408220 is about 2099.5761477022. The cubic root of 4408220 is about 163.9662333813.

The spelling of 4408220 in words is "four million, four hundred eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 220411 440822 881644 1102055 2204110 4408220