3842740865 has 16 divisors (see below), whose sum is σ = 4648026240. Its totient is φ = 3049756800.

The previous prime is 3842740829. The next prime is 3842740871. The reversal of 3842740865 is 5680472483.

It is not a de Polignac number, because 3842740865 - 2¹² = 3842736769 is a prime.

It is a super-3 number, since 3×3842740865³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644066 + ... + 650004.

It is an arithmetic number, because the mean of its divisors is an integer number (290501640).

Almost surely, 2^3842740865 is an apocalyptic number.

It is an amenable number.

3842740865 is a deficient number, since it is larger than the sum of its proper divisors (805285375).

3842740865 is a wasteful number, since it uses less digits than its factorization.

3842740865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The square root of 3842740865 is about 61989.8448538146. The cubic root of 3842740865 is about 1566.3195415986.

The spelling of 3842740865 in words is "three billion, eight hundred forty-two million, seven hundred forty thousand, eight hundred sixty-five".