3867240305 has 8 divisors (see below), whose sum is σ = 4642579752. Its totient is φ = 3092531328.

The previous prime is 3867240269. The next prime is 3867240319. The reversal of 3867240305 is 5030427683.

3867240305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1322340496 + 2544899809 = 36364^2 + 50447^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3867240305 - 2¹² = 3867236209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144014 + ... + 168743.

It is an arithmetic number, because the mean of its divisors is an integer number (580322469).

Almost surely, 2^3867240305 is an apocalyptic number.

It is an amenable number.

3867240305 is a deficient number, since it is larger than the sum of its proper divisors (775339447).

3867240305 is a wasteful number, since it uses less digits than its factorization.

3867240305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315235.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 3867240305 is about 62187.1393858891. The cubic root of 3867240305 is about 1569.6411887778.

Adding to 3867240305 its reverse (5030427683), we get a palindrome (8897667988).

The spelling of 3867240305 in words is "three billion, eight hundred sixty-seven million, two hundred forty thousand, three hundred five".