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40667 = 113697
BaseRepresentation
bin1001111011011011
32001210012
421323123
52300132
6512135
7226364
oct117333
961705
1040667
1128610
121b64b
1315683
1410b6b
15c0b2
hex9edb

40667 has 4 divisors (see below), whose sum is σ = 44376. Its totient is φ = 36960.

The previous prime is 40639. The next prime is 40693. The reversal of 40667 is 76604.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40667 - 212 = 36571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (11094).

240667 is an apocalyptic number.

40667 is a deficient number, since it is larger than the sum of its proper divisors (3709).

40667 is a wasteful number, since it uses less digits than its factorization.

40667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40667 is about 201.6606059695. The cubic root of 40667 is about 34.3885643438.

Subtracting 40667 from its reverse (76604), we obtain a cube (35937 = 333).

It can be divided in two parts, 40 and 667, that added together give a palindrome (707).

The spelling of 40667 in words is "forty thousand, six hundred sixty-seven".

Divisors: 1 11 3697 40667