40216136 has 8 divisors (see below), whose sum is σ = 75405270. Its totient is φ = 20108064.

The previous prime is 40216133. The next prime is 40216157. The reversal of 40216136 is 63161204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35402500 + 4813636 = 5950^2 + 2194^2 .

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 (40216133) 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, 2513501 + ... + 2513516.

Almost surely, 2^40216136 is an apocalyptic number.

It is an amenable number.

40216136 is a deficient number, since it is larger than the sum of its proper divisors (35189134).

40216136 is a wasteful number, since it uses less digits than its factorization.

40216136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027023 (or 5027019 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40216136 is about 6341.6193515537. The cubic root of 40216136 is about 342.6100621290.

The spelling of 40216136 in words is "forty million, two hundred sixteen thousand, one hundred thirty-six".