40006768 has 20 divisors (see below), whose sum is σ = 79609240. Its totient is φ = 19462464.

The previous prime is 40006751. The next prime is 40006781. The reversal of 40006768 is 86760004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33198 + ... + 34381.

It is an arithmetic number, because the mean of its divisors is an integer number (3980462).

Almost surely, 2^40006768 is an apocalyptic number.

It is an amenable number.

40006768 is a deficient number, since it is larger than the sum of its proper divisors (39602472).

40006768 is a wasteful number, since it uses less digits than its factorization.

40006768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67624 (or 67618 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 40006768 is about 6325.0903550858. The cubic root of 40006768 is about 342.0144767762.

The spelling of 40006768 in words is "forty million, six thousand, seven hundred sixty-eight".