4240537537 has 4 divisors (see below), whose sum is σ = 4242054276. Its totient is φ = 4239020800.

The previous prime is 4240537529. The next prime is 4240537597. The reversal of 4240537537 is 7357350424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2790374976 + 1450162561 = 52824^2 + 38081^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240537537 - 2³ = 4240537529 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 4240537537.

It is not an unprimeable number, because it can be changed into a prime (4240537517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754168 + ... + 759769.

It is an arithmetic number, because the mean of its divisors is an integer number (1060513569).

Almost surely, 2^4240537537 is an apocalyptic number.

It is an amenable number.

4240537537 is a deficient number, since it is larger than the sum of its proper divisors (1516739).

4240537537 is a wasteful number, since it uses less digits than its factorization.

4240537537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516738.

The product of its (nonzero) digits is 352800, while the sum is 40.

The square root of 4240537537 is about 65119.4098330137. The cubic root of 4240537537 is about 1618.6028619917.

The spelling of 4240537537 in words is "four billion, two hundred forty million, five hundred thirty-seven thousand, five hundred thirty-seven".