6457280 has 56 divisors (see below), whose sum is σ = 16294608. Its totient is φ = 2428928.

The previous prime is 6457279. The next prime is 6457291. The reversal of 6457280 is 827546.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 4847 + ... + 6033.

Almost surely, 2^6457280 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 6457280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8147304).

6457280 is an abundant number, since it is smaller than the sum of its proper divisors (9837328).

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

6457280 is a wasteful number, since it uses less digits than its factorization.

6457280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 6457280 is about 2541.1178642479. The cubic root of 6457280 is about 186.2158053225.

The spelling of 6457280 in words is "six million, four hundred fifty-seven thousand, two hundred eighty".