40033836 has 72 divisors (see below), whose sum is σ = 107714880. Its totient is φ = 12501216.

The previous prime is 40033813. The next prime is 40033843. The reversal of 40033836 is 63833004.

40033836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 72915 + ... + 73461.

It is an arithmetic number, because the mean of its divisors is an integer number (1496040).

Almost surely, 2^40033836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40033836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53857440).

40033836 is an abundant number, since it is smaller than the sum of its proper divisors (67681044).

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

40033836 is a wasteful number, since it uses less digits than its factorization.

40033836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 40033836 is about 6327.2297255592. The cubic root of 40033836 is about 342.0915934013.

The spelling of 40033836 in words is "forty million, thirty-three thousand, eight hundred thirty-six".