40543030609 has 9 divisors (see below), whose sum is σ = 40748030409. Its totient is φ = 40339060020.

The previous prime is 40543030543. The next prime is 40543030637. The reversal of 40543030609 is 90603034504.

It is a happy number.

The square root of 40543030609 is 201353.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 40543030609 - 2⁷ = 40543030481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40543037609) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54566292 + ... + 54567034.

Almost surely, 2^40543030609 is an apocalyptic number.

40543030609 is the 201353-rd square number.

40543030609 is the 100677-th centered octagonal number.

It is an amenable number.

40543030609 is a deficient number, since it is larger than the sum of its proper divisors (204999800).

40543030609 is an frugal number, since it uses more digits than its factorization.

40543030609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 40543030609 in words is "forty billion, five hundred forty-three million, thirty thousand, six hundred nine".