3540405243 has 8 divisors (see below), whose sum is σ = 4723594000. Its totient is φ = 2358743328.

The previous prime is 3540405181. The next prime is 3540405293. The reversal of 3540405243 is 3425040453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3540405243 - 2²² = 3536210939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3540405243.

It is not an unprimeable number, because it can be changed into a prime (3540405293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376288 + ... + 385581.

It is an arithmetic number, because the mean of its divisors is an integer number (590449250).

Almost surely, 2^3540405243 is an apocalyptic number.

3540405243 is a deficient number, since it is larger than the sum of its proper divisors (1183188757).

3540405243 is a wasteful number, since it uses less digits than its factorization.

3540405243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763421.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 3540405243 is about 59501.3045487240. The cubic root of 3540405243 is about 1524.1147230237.

Adding to 3540405243 its reverse (3425040453), we get a palindrome (6965445696).

The spelling of 3540405243 in words is "three billion, five hundred forty million, four hundred five thousand, two hundred forty-three".