3688040345 has 32 divisors (see below), whose sum is σ = 5057856000. Its totient is φ = 2556852480.

The previous prime is 3688040339. The next prime is 3688040347. The reversal of 3688040345 is 5430408863.

It is a happy number.

It is not a de Polignac number, because 3688040345 - 2⁴ = 3688040329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3688040347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111371 + ... + 140639.

It is an arithmetic number, because the mean of its divisors is an integer number (158058000).

Almost surely, 2^3688040345 is an apocalyptic number.

It is an amenable number.

3688040345 is a deficient number, since it is larger than the sum of its proper divisors (1369815655).

3688040345 is a wasteful number, since it uses less digits than its factorization.

3688040345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29393.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 3688040345 is about 60729.2379748009. The cubic root of 3688040345 is about 1545.0121098187.

The spelling of 3688040345 in words is "three billion, six hundred eighty-eight million, forty thousand, three hundred forty-five".