40533636 has 144 divisors (see below), whose sum is σ = 118056960. Its totient is φ = 10707840.

The previous prime is 40533629. The next prime is 40533643. The reversal of 40533636 is 63633504.

40533636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40533629) and next prime (40533643).

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 47 ways as a sum of consecutive naturals, for example, 513045 + ... + 513123.

It is an arithmetic number, because the mean of its divisors is an integer number (819840).

Almost surely, 2^40533636 is an apocalyptic number.

40533636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40533636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59028480).

40533636 is an abundant number, since it is smaller than the sum of its proper divisors (77523324).

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

40533636 is a wasteful number, since it uses less digits than its factorization.

40533636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 40533636 is about 6366.6031759487. The cubic root of 40533636 is about 343.5093170965.

The spelling of 40533636 in words is "forty million, five hundred thirty-three thousand, six hundred thirty-six".