3688240449 has 4 divisors (see below), whose sum is σ = 4917653936. Its totient is φ = 2458826964.

The previous prime is 3688240441. The next prime is 3688240453. The reversal of 3688240449 is 9440428863.

3688240449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3688240449 - 2³ = 3688240441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3688240398 and 3688240407.

It is not an unprimeable number, because it can be changed into a prime (3688240441) 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, 614706739 + ... + 614706744.

It is an arithmetic number, because the mean of its divisors is an integer number (1229413484).

Almost surely, 2^3688240449 is an apocalyptic number.

It is an amenable number.

3688240449 is a deficient number, since it is larger than the sum of its proper divisors (1229413487).

3688240449 is a wasteful number, since it uses less digits than its factorization.

3688240449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229413486.

The product of its (nonzero) digits is 1327104, while the sum is 48.

The square root of 3688240449 is about 60730.8854620118. The cubic root of 3688240449 is about 1545.0400521660.

The spelling of 3688240449 in words is "three billion, six hundred eighty-eight million, two hundred forty thousand, four hundred forty-nine".