40136500 has 24 divisors (see below), whose sum is σ = 87659208. Its totient is φ = 16054400.

The previous prime is 40136497. The next prime is 40136533. The reversal of 40136500 is 563104.

40136500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4088484 + 36048016 = 2022^2 + 6004^2 .

It is a super-2 number, since 2×40136500² = 3221877264500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39637 + ... + 40636.

It is an arithmetic number, because the mean of its divisors is an integer number (3652467).

Almost surely, 2^40136500 is an apocalyptic number.

It is an amenable number.

40136500 is an abundant number, since it is smaller than the sum of its proper divisors (47522708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40136500 is a wasteful number, since it uses less digits than its factorization.

40136500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80292 (or 80280 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40136500 is about 6335.3374022226. The cubic root of 40136500 is about 342.3837671905.

Adding to 40136500 its reverse (563104), we get a palindrome (40699604).

The spelling of 40136500 in words is "forty million, one hundred thirty-six thousand, five hundred".