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40004066 = 226974357
BaseRepresentation
bin1001100010011…
…0100111100010
32210021102021002
42120212213202
540220112231
63545232002
7664012634
oct230464742
983242232
1040004066
1120643713
1211492602
13839865b
145454a54
1537a30cb
hex26269e2

40004066 has 8 divisors (see below), whose sum is σ = 60229980. Its totient is φ = 19927408.

The previous prime is 40004057. The next prime is 40004087. The reversal of 40004066 is 66040004.

It can be written as a sum of positive squares in 2 ways, for example, as 29474041 + 10530025 = 5429^2 + 3245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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, 36641 + ... + 37716.

Almost surely, 240004066 is an apocalyptic number.

40004066 is a deficient number, since it is larger than the sum of its proper divisors (20225914).

40004066 is a wasteful number, since it uses less digits than its factorization.

40004066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74628.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40004066 is about 6324.8767576926. The cubic root of 40004066 is about 342.0067768797.

The spelling of 40004066 in words is "forty million, four thousand, sixty-six", and thus it is an eban number.

Divisors: 1 2 269 538 74357 148714 20002033 40004066