3949575280 has 40 divisors (see below), whose sum is σ = 10494587232. Its totient is φ = 1354139904.

The previous prime is 3949575271. The next prime is 3949575359. The reversal of 3949575280 is 825759493.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3525847 + ... + 3526966.

Almost surely, 2^3949575280 is an apocalyptic number.

It is an amenable number.

3949575280 is an abundant number, since it is smaller than the sum of its proper divisors (6545011952).

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

3949575280 is a wasteful number, since it uses less digits than its factorization.

3949575280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052833 (or 7052827 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The square root of 3949575280 is about 62845.6464681524. The cubic root of 3949575280 is about 1580.7024703081.

The spelling of 3949575280 in words is "three billion, nine hundred forty-nine million, five hundred seventy-five thousand, two hundred eighty".