3858940 has 24 divisors (see below), whose sum is σ = 8457120. Its totient is φ = 1476288.

The previous prime is 3858931. The next prime is 3858941. The reversal of 3858940 is 498583.

It is a self number, because there is not a number n which added to its sum of digits gives 3858940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3735 + ... + 4654.

It is an arithmetic number, because the mean of its divisors is an integer number (352380).

Almost surely, 2^3858940 is an apocalyptic number.

It is an amenable number.

3858940 is an abundant number, since it is smaller than the sum of its proper divisors (4598180).

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

3858940 is a wasteful number, since it uses less digits than its factorization.

3858940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421 (or 8419 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 3858940 is about 1964.4184890191. The cubic root of 3858940 is about 156.8517404392.

The spelling of 3858940 in words is "three million, eight hundred fifty-eight thousand, nine hundred forty".