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40566 = 236761
BaseRepresentation
bin1001111001110110
32001122110
421321312
52244231
6511450
7226161
oct117166
961573
1040566
1128529
121b586
1315606
1410ad8
15c046
hex9e76

40566 has 8 divisors (see below), whose sum is σ = 81144. Its totient is φ = 13520.

The previous prime is 40559. The next prime is 40577. The reversal of 40566 is 66504.

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

40566 is an admirable number.

It is a congruent number.

It is an unprimeable number.

40566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3375 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (10143).

240566 is an apocalyptic number.

40566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40572).

40566 is a wasteful number, since it uses less digits than its factorization.

40566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 40566 is about 201.4100295417. The cubic root of 40566 is about 34.3600717549.

It can be divided in two parts, 4056 and 6, that multiplied together give a square (24336 = 1562).

The spelling of 40566 in words is "forty thousand, five hundred sixty-six".

Divisors: 1 2 3 6 6761 13522 20283 40566