40666093 has 16 divisors (see below), whose sum is σ = 45956736. Its totient is φ = 35703360.

The previous prime is 40666081. The next prime is 40666103. The reversal of 40666093 is 39066604.

It is a de Polignac number, because none of the positive numbers 2^k-40666093 is a prime.

It is a super-2 number, since 2×40666093² = 3307462239769298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82578 + ... + 83068.

It is an arithmetic number, because the mean of its divisors is an integer number (2872296).

Almost surely, 2^40666093 is an apocalyptic number.

It is an amenable number.

40666093 is a deficient number, since it is larger than the sum of its proper divisors (5290643).

40666093 is a wasteful number, since it uses less digits than its factorization.

40666093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 40666093 is about 6376.9971773555. The cubic root of 40666093 is about 343.8830868474.

The spelling of 40666093 in words is "forty million, six hundred sixty-six thousand, ninety-three".