40063636 has 12 divisors (see below), whose sum is σ = 70257600. Its totient is φ = 19990040.

The previous prime is 40063633. The next prime is 40063657. The reversal of 40063636 is 63636004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40063633) by changing a digit.

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, 8236 + ... + 12163.

It is an arithmetic number, because the mean of its divisors is an integer number (5854800).

Almost surely, 2^40063636 is an apocalyptic number.

It is an amenable number.

40063636 is a deficient number, since it is larger than the sum of its proper divisors (30193964).

40063636 is a wasteful number, since it uses less digits than its factorization.

40063636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20894 (or 20892 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 40063636 is about 6329.5841885546. The cubic root of 40063636 is about 342.1764532939.

The spelling of 40063636 in words is "forty million, sixty-three thousand, six hundred thirty-six".