40056668 has 6 divisors (see below), whose sum is σ = 70099176. Its totient is φ = 20028332.

The previous prime is 40056659. The next prime is 40056671. The reversal of 40056668 is 86665004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5007080 + ... + 5007087.

It is an arithmetic number, because the mean of its divisors is an integer number (11683196).

Almost surely, 2^40056668 is an apocalyptic number.

It is an amenable number.

40056668 is a deficient number, since it is larger than the sum of its proper divisors (30042508).

40056668 is a wasteful number, since it uses less digits than its factorization.

40056668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10014171 (or 10014169 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 40056668 is about 6329.0337335173. The cubic root of 40056668 is about 342.1566146571.

The spelling of 40056668 in words is "forty million, fifty-six thousand, six hundred sixty-eight".