3840872 has 32 divisors (see below), whose sum is σ = 8320320. Its totient is φ = 1628160.

The previous prime is 3840853. The next prime is 3840911. The reversal of 3840872 is 2780483.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 5672 + ... + 6312.

It is an arithmetic number, because the mean of its divisors is an integer number (260010).

Almost surely, 2^3840872 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 3840872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4160160).

3840872 is an abundant number, since it is smaller than the sum of its proper divisors (4479448).

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

3840872 is a wasteful number, since it uses less digits than its factorization.

3840872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 3840872 is about 1959.8142769150. The cubic root of 3840872 is about 156.6065580989.

The spelling of 3840872 in words is "three million, eight hundred forty thousand, eight hundred seventy-two".