3909448 has 16 divisors (see below), whose sum is σ = 7649280. Its totient is φ = 1869648.

The previous prime is 3909427. The next prime is 3909463. The reversal of 3909448 is 8449093.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10440 + ... + 10807.

It is an arithmetic number, because the mean of its divisors is an integer number (478080).

Almost surely, 2^3909448 is an apocalyptic number.

It is an amenable number.

3909448 is a deficient number, since it is larger than the sum of its proper divisors (3739832).

3909448 is a wasteful number, since it uses less digits than its factorization.

3909448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21276 (or 21272 counting only the distinct ones).

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

The square root of 3909448 is about 1977.2324092023. The cubic root of 3909448 is about 157.5330979404.

The spelling of 3909448 in words is "three million, nine hundred nine thousand, four hundred forty-eight".