40666106 has 8 divisors (see below), whose sum is σ = 65691444. Its totient is φ = 18768960.

The previous prime is 40666103. The next prime is 40666117. The reversal of 40666106 is 60166604.

It can be written as a sum of positive squares in 2 ways, for example, as 40513225 + 152881 = 6365^2 + 391^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40666103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782015 + ... + 782066.

Almost surely, 2^40666106 is an apocalyptic number.

40666106 is a deficient number, since it is larger than the sum of its proper divisors (25025338).

40666106 is a wasteful number, since it uses less digits than its factorization.

40666106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564096.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40666106 is about 6376.9981966439. The cubic root of 40666106 is about 343.8831234912.

The spelling of 40666106 in words is "forty million, six hundred sixty-six thousand, one hundred six".