40543330 has 16 divisors (see below), whose sum is σ = 73193400. Its totient is φ = 16169472.

The previous prime is 40543297. The next prime is 40543331. The reversal of 40543330 is 3334504.

It can be written as a sum of positive squares in 4 ways, for example, as 33767721 + 6775609 = 5811^2 + 2603^2 .

It is not an unprimeable number, because it can be changed into a prime (40543331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319 + ... + 9298.

Almost surely, 2^40543330 is an apocalyptic number.

40543330 is a deficient number, since it is larger than the sum of its proper divisors (32650070).

40543330 is a wasteful number, since it uses less digits than its factorization.

40543330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11973.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 40543330 is about 6367.3644469278. The cubic root of 40543330 is about 343.5366994076.

Adding to 40543330 its reverse (3334504), we get a palindrome (43877834).

The spelling of 40543330 in words is "forty million, five hundred forty-three thousand, three hundred thirty".