40673666 has 24 divisors (see below), whose sum is σ = 67625712. Its totient is φ = 18332600.

The previous prime is 40673663. The next prime is 40673671. The reversal of 40673666 is 66637604.

It is not an unprimeable number, because it can be changed into a prime (40673663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31061 + ... + 32343.

It is an arithmetic number, because the mean of its divisors is an integer number (2817738).

Almost surely, 2^40673666 is an apocalyptic number.

40673666 is a deficient number, since it is larger than the sum of its proper divisors (26952046).

40673666 is a wasteful number, since it uses less digits than its factorization.

40673666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 40673666 is about 6377.5909244792. The cubic root of 40673666 is about 343.9044319434.

The spelling of 40673666 in words is "forty million, six hundred seventy-three thousand, six hundred sixty-six".