6631280 has 20 divisors (see below), whose sum is σ = 15417912. Its totient is φ = 2652480.

The previous prime is 6631279. The next prime is 6631321. The reversal of 6631280 is 821366.

It is a tau number, because it is divible by the number of its divisors (20).

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, 41366 + ... + 41525.

Almost surely, 2^6631280 is an apocalyptic number.

It is an amenable number.

6631280 is an abundant number, since it is smaller than the sum of its proper divisors (8786632).

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

6631280 is a wasteful number, since it uses less digits than its factorization.

6631280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82904 (or 82898 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6631280 is about 2575.1271813252. The cubic root of 6631280 is about 187.8736135596.

The spelling of 6631280 in words is "six million, six hundred thirty-one thousand, two hundred eighty".