40035656 has 8 divisors (see below), whose sum is σ = 75066870. Its totient is φ = 20017824.

The previous prime is 40035637. The next prime is 40035659. The reversal of 40035656 is 65653004.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 18783556 = 4610^2 + 4334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40035659) 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 as a sum of consecutive naturals, namely, 2502221 + ... + 2502236.

Almost surely, 2^40035656 is an apocalyptic number.

It is an amenable number.

40035656 is a deficient number, since it is larger than the sum of its proper divisors (35031214).

40035656 is a wasteful number, since it uses less digits than its factorization.

40035656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004463 (or 5004459 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 40035656 is about 6327.3735467412. The cubic root of 40035656 is about 342.0967773267.

The spelling of 40035656 in words is "forty million, thirty-five thousand, six hundred fifty-six".