3949449 has 24 divisors (see below), whose sum is σ = 6232608. Its totient is φ = 2217600.

The previous prime is 3949441. The next prime is 3949453. The reversal of 3949449 is 9449493.

It is not a de Polignac number, because 3949449 - 2³ = 3949441 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3949449.

It is not an unprimeable number, because it can be changed into a prime (3949441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9649 + ... + 10049.

It is an arithmetic number, because the mean of its divisors is an integer number (259692).

Almost surely, 2^3949449 is an apocalyptic number.

It is an amenable number.

3949449 is a deficient number, since it is larger than the sum of its proper divisors (2283159).

3949449 is a wasteful number, since it uses less digits than its factorization.

3949449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 478 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 3949449 is about 1987.3220675069. The cubic root of 3949449 is about 158.0685623498.

The spelling of 3949449 in words is "three million, nine hundred forty-nine thousand, four hundred forty-nine".