3949280 has 24 divisors (see below), whose sum is σ = 9330552. Its totient is φ = 1579648.

The previous prime is 3949273. The next prime is 3949291. The reversal of 3949280 is 829493.

It is a self number, because there is not a number n which added to its sum of digits gives 3949280.

It is a congruent number.

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, 12182 + ... + 12501.

It is an arithmetic number, because the mean of its divisors is an integer number (388773).

Almost surely, 2^3949280 is an apocalyptic number.

It is an amenable number.

3949280 is an abundant number, since it is smaller than the sum of its proper divisors (5381272).

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

3949280 is a wasteful number, since it uses less digits than its factorization.

3949280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24698 (or 24690 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3949280 is about 1987.2795475222. The cubic root of 3949280 is about 158.0663076920.

The spelling of 3949280 in words is "three million, nine hundred forty-nine thousand, two hundred eighty".