3949860 has 24 divisors (see below), whose sum is σ = 11059776. Its totient is φ = 1053280.

The previous prime is 3949849. The next prime is 3949867. The reversal of 3949860 is 689493.

It is not an unprimeable number, because it can be changed into a prime (3949867) 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, 32856 + ... + 32975.

It is an arithmetic number, because the mean of its divisors is an integer number (460824).

Almost surely, 2^3949860 is an apocalyptic number.

3949860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3949860 is an abundant number, since it is smaller than the sum of its proper divisors (7109916).

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

3949860 is a wasteful number, since it uses less digits than its factorization.

3949860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65843 (or 65841 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 3949860 is about 1987.4254703007. The cubic root of 3949860 is about 158.0740453024.

The spelling of 3949860 in words is "three million, nine hundred forty-nine thousand, eight hundred sixty".