40664535 has 8 divisors (see below), whose sum is σ = 65063280. Its totient is φ = 21687744.

The previous prime is 40664501. The next prime is 40664549. The reversal of 40664535 is 53546604.

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

It is not a de Polignac number, because 40664535 - 2⁶ = 40664471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40664496 and 40664505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355470 + ... + 1355499.

It is an arithmetic number, because the mean of its divisors is an integer number (8132910).

Almost surely, 2^40664535 is an apocalyptic number.

40664535 is a deficient number, since it is larger than the sum of its proper divisors (24398745).

40664535 is a wasteful number, since it uses less digits than its factorization.

40664535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710977.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 40664535 is about 6376.8750183769. The cubic root of 40664535 is about 343.8786951732.

The spelling of 40664535 in words is "forty million, six hundred sixty-four thousand, five hundred thirty-five".