40663408 has 20 divisors (see below), whose sum is σ = 79568568. Its totient is φ = 20129600.

The previous prime is 40663391. The next prime is 40663411. The reversal of 40663408 is 80436604.

40663408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40663408.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10966 + ... + 14197.

Almost surely, 2^40663408 is an apocalyptic number.

It is an amenable number.

40663408 is a deficient number, since it is larger than the sum of its proper divisors (38905160).

40663408 is a wasteful number, since it uses less digits than its factorization.

40663408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25272 (or 25266 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40663408 is about 6376.7866515981. The cubic root of 40663408 is about 343.8755183274.

The spelling of 40663408 in words is "forty million, six hundred sixty-three thousand, four hundred eight".