40513236 has 24 divisors (see below), whose sum is σ = 94756704. Its totient is φ = 13472160.

The previous prime is 40513219. The next prime is 40513237. The reversal of 40513236 is 63231504.

It is a happy number.

40513236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40513237) by changing a digit.

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, 1506 + ... + 9126.

It is an arithmetic number, because the mean of its divisors is an integer number (3948196).

Almost surely, 2^40513236 is an apocalyptic number.

It is an amenable number.

40513236 is an abundant number, since it is smaller than the sum of its proper divisors (54243468).

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

40513236 is a wasteful number, since it uses less digits than its factorization.

40513236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 40513236 is about 6365.0008641005. Note that the first 3 decimals coincide. The cubic root of 40513236 is about 343.4516796486.

The spelling of 40513236 in words is "forty million, five hundred thirteen thousand, two hundred thirty-six".