3840065240 has 64 divisors (see below), whose sum is σ = 9450639360. Its totient is φ = 1392680320.

The previous prime is 3840065219. The next prime is 3840065267. The reversal of 3840065240 is 425600483.

It is a super-2 number, since 2×3840065240² = 29492202094912515200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3840065197 and 3840065206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157127 + ... + 179913.

It is an arithmetic number, because the mean of its divisors is an integer number (147666240).

Almost surely, 2^3840065240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3840065240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4725319680).

3840065240 is an abundant number, since it is smaller than the sum of its proper divisors (5610574120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3840065240 is a wasteful number, since it uses less digits than its factorization.

3840065240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23192 (or 23188 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 3840065240 is about 61968.2599400693. The cubic root of 3840065240 is about 1565.9559246800.

The spelling of 3840065240 in words is "three billion, eight hundred forty million, sixty-five thousand, two hundred forty".