40666441 has 8 divisors (see below), whose sum is σ = 43964480. Its totient is φ = 37484208.

The previous prime is 40666427. The next prime is 40666453. The reversal of 40666441 is 14466604.

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

It is a cyclic number.

It is not a de Polignac number, because 40666441 - 2⁹ = 40665929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40666411) 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 7 ways as a sum of consecutive naturals, for example, 28221 + ... + 29626.

It is an arithmetic number, because the mean of its divisors is an integer number (5495560).

Almost surely, 2^40666441 is an apocalyptic number.

It is an amenable number.

40666441 is a deficient number, since it is larger than the sum of its proper divisors (3298039).

40666441 is a wasteful number, since it uses less digits than its factorization.

40666441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57903.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40666441 is about 6377.0244628667. The cubic root of 40666441 is about 343.8840677708.

The spelling of 40666441 in words is "forty million, six hundred sixty-six thousand, four hundred forty-one".