40534536 has 64 divisors (see below), whose sum is σ = 118961280. Its totient is φ = 11266560.

The previous prime is 40534519. The next prime is 40534537. The reversal of 40534536 is 63543504.

It is not an unprimeable number, because it can be changed into a prime (40534537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2956 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (1858770).

Almost surely, 2^40534536 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 40534536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59480640).

40534536 is an abundant number, since it is smaller than the sum of its proper divisors (78426744).

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

40534536 is a wasteful number, since it uses less digits than its factorization.

40534536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6574 (or 6570 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 40534536 is about 6366.6738568895. The cubic root of 40534536 is about 343.5118594796.

The spelling of 40534536 in words is "forty million, five hundred thirty-four thousand, five hundred thirty-six".