40533540 has 24 divisors (see below), whose sum is σ = 113494080. Its totient is φ = 10808928.

The previous prime is 40533539. The next prime is 40533541. The reversal of 40533540 is 4533504.

It is a happy number.

40533540 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 (40533539) and next prime (40533541).

It is a self number, because there is not a number n which added to its sum of digits gives 40533540.

It is not an unprimeable number, because it can be changed into a prime (40533541) 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, 337720 + ... + 337839.

It is an arithmetic number, because the mean of its divisors is an integer number (4728920).

Almost surely, 2^40533540 is an apocalyptic number.

It is an amenable number.

40533540 is an abundant number, since it is smaller than the sum of its proper divisors (72960540).

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

40533540 is a wasteful number, since it uses less digits than its factorization.

40533540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675571 (or 675569 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 40533540 is about 6366.5956366020. The cubic root of 40533540 is about 343.5090459068.

The spelling of 40533540 in words is "forty million, five hundred thirty-three thousand, five hundred forty".