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4002066 = 232222337
BaseRepresentation
bin1111010001000100010010
321112022210200
433101010102
52011031231
6221440030
746005555
oct17210422
97468720
104002066
1122938a2
121410016
13aa17b3
1476269c
15540be6
hex3d1112

4002066 has 12 divisors (see below), whose sum is σ = 8671182. Its totient is φ = 1334016.

The previous prime is 4002049. The next prime is 4002067. The reversal of 4002066 is 6602004.

It can be written as a sum of positive squares in only one way, i.e., 3164841 + 837225 = 1779^2 + 915^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 222337 = 4002066 / (4 + 0 + 0 + 2 + 0 + 6 + 6).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4002067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111151 + ... + 111186.

Almost surely, 24002066 is an apocalyptic number.

4002066 is an abundant number, since it is smaller than the sum of its proper divisors (4669116).

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

4002066 is a wasteful number, since it uses less digits than its factorization.

4002066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222345 (or 222342 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4002066 is about 2000.5164333242. The cubic root of 4002066 is about 158.7674302477.

The spelling of 4002066 in words is "four million, two thousand, sixty-six", and thus it is an eban number.

Divisors: 1 2 3 6 9 18 222337 444674 667011 1334022 2001033 4002066