40666604 has 12 divisors (see below), whose sum is σ = 77636328. Its totient is φ = 18484800.

The previous prime is 40666603. The next prime is 40666607.

It is a happy number.

40666604 is nontrivially palindromic in base 10.

40666604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40666603) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 462077 + ... + 462164.

It is an arithmetic number, because the mean of its divisors is an integer number (6469694).

Almost surely, 2^40666604 is an apocalyptic number.

40666604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40666604 is a deficient number, since it is larger than the sum of its proper divisors (36969724).

40666604 is a wasteful number, since it uses less digits than its factorization.

40666604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924256 (or 924254 counting only the distinct ones).

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

The square root of 40666604 is about 6377.0372431091. The cubic root of 40666604 is about 343.8845272244.

The spelling of 40666604 in words is "forty million, six hundred sixty-six thousand, six hundred four".