40532140 has 48 divisors (see below), whose sum is σ = 96072480. Its totient is φ = 14228480.

The previous prime is 40532117. The next prime is 40532171. The reversal of 40532140 is 4123504.

40532140 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 15 ways as a sum of consecutive naturals, for example, 3204 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (2001510).

Almost surely, 2^40532140 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 40532140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48036240).

40532140 is an abundant number, since it is smaller than the sum of its proper divisors (55540340).

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

40532140 is a wasteful number, since it uses less digits than its factorization.

40532140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402 (or 6400 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40532140 is about 6366.4856867820. The cubic root of 40532140 is about 343.5050910075.

Adding to 40532140 its reverse (4123504), we get a palindrome (44655644).

The spelling of 40532140 in words is "forty million, five hundred thirty-two thousand, one hundred forty".