3849940 has 12 divisors (see below), whose sum is σ = 8084916. Its totient is φ = 1539968.

The previous prime is 3849929. The next prime is 3849943. The reversal of 3849940 is 499483.

It can be written as a sum of positive squares in 2 ways, for example, as 2709316 + 1140624 = 1646^2 + 1068^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3849940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3849943) 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, 96229 + ... + 96268.

It is an arithmetic number, because the mean of its divisors is an integer number (673743).

Almost surely, 2^3849940 is an apocalyptic number.

It is an amenable number.

3849940 is an abundant number, since it is smaller than the sum of its proper divisors (4234976).

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

3849940 is a wasteful number, since it uses less digits than its factorization.

3849940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192506 (or 192504 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3849940 is about 1962.1263975595. The cubic root of 3849940 is about 156.7297065353.

The spelling of 3849940 in words is "three million, eight hundred forty-nine thousand, nine hundred forty".