40664246 has 16 divisors (see below), whose sum is σ = 69797376. Its totient is φ = 17405736.

The previous prime is 40664233. The next prime is 40664263. The reversal of 40664246 is 64246604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15395 + ... + 17841.

It is an arithmetic number, because the mean of its divisors is an integer number (4362336).

Almost surely, 2^40664246 is an apocalyptic number.

40664246 is a deficient number, since it is larger than the sum of its proper divisors (29133130).

40664246 is a wasteful number, since it uses less digits than its factorization.

40664246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 40664246 is about 6376.8523583348. The cubic root of 40664246 is about 343.8778805307.

The spelling of 40664246 in words is "forty million, six hundred sixty-four thousand, two hundred forty-six".