6471280 has 40 divisors (see below), whose sum is σ = 15704352. Its totient is φ = 2475264.

The previous prime is 6471277. The next prime is 6471287. The reversal of 6471280 is 821746.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6471287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82 + ... + 3598.

Almost surely, 2^6471280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6471280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7852176).

6471280 is an abundant number, since it is smaller than the sum of its proper divisors (9233072).

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

6471280 is a wasteful number, since it uses less digits than its factorization.

6471280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 6471280 is about 2543.8710659151. The cubic root of 6471280 is about 186.3502860662.

The spelling of 6471280 in words is "six million, four hundred seventy-one thousand, two hundred eighty".