40046666 has 8 divisors (see below), whose sum is σ = 65530944. Its totient is φ = 18203020.

The previous prime is 40046603. The next prime is 40046681. The reversal of 40046666 is 66664004.

It is a happy number.

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

40046666 is a modest number, since divided by 6666 gives 4004 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910130 + ... + 910173.

It is an arithmetic number, because the mean of its divisors is an integer number (8191368).

Almost surely, 2^40046666 is an apocalyptic number.

40046666 is a deficient number, since it is larger than the sum of its proper divisors (25484278).

40046666 is a wasteful number, since it uses less digits than its factorization.

40046666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820316.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 40046666 is about 6328.2435161741. The cubic root of 40046666 is about 342.1281338780.

The spelling of 40046666 in words is "forty million, forty-six thousand, six hundred sixty-six".