6451280 has 40 divisors (see below), whose sum is σ = 16365024. Its totient is φ = 2345600.

The previous prime is 6451271. The next prime is 6451297. The reversal of 6451280 is 821546.

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, 2786 + ... + 4545.

Almost surely, 2^6451280 is an apocalyptic number.

It is an amenable number.

6451280 is an abundant number, since it is smaller than the sum of its proper divisors (9913744).

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

6451280 is a wasteful number, since it uses less digits than its factorization.

6451280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355 (or 7349 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 6451280 is about 2539.9370070929. The cubic root of 6451280 is about 186.1581112125.

The spelling of 6451280 in words is "six million, four hundred fifty-one thousand, two hundred eighty".