40066466 has 16 divisors (see below), whose sum is σ = 66960000. Its totient is φ = 17824080.

The previous prime is 40066457. The next prime is 40066489. The reversal of 40066466 is 66466004.

It is a happy number.

40066466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18341 + ... + 20408.

It is an arithmetic number, because the mean of its divisors is an integer number (4185000).

Almost surely, 2^40066466 is an apocalyptic number.

40066466 is a deficient number, since it is larger than the sum of its proper divisors (26893534).

40066466 is a wasteful number, since it uses less digits than its factorization.

40066466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38809.

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

The square root of 40066466 is about 6329.8077379965. The cubic root of 40066466 is about 342.1845099479.

It can be divided in two parts, 400 and 66466, that added together give a palindrome (66866).

The spelling of 40066466 in words is "forty million, sixty-six thousand, four hundred sixty-six".