6397280 has 24 divisors (see below), whose sum is σ = 15113952. Its totient is φ = 2558848.

The previous prime is 6397273. The next prime is 6397283. The reversal of 6397280 is 827936.

It is a self number, because there is not a number n which added to its sum of digits gives 6397280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19832 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (629748).

Almost surely, 2^6397280 is an apocalyptic number.

It is an amenable number.

6397280 is an abundant number, since it is smaller than the sum of its proper divisors (8716672).

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

6397280 is a wasteful number, since it uses less digits than its factorization.

6397280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39998 (or 39990 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6397280 is about 2529.2844838017. The cubic root of 6397280 is about 185.6372472807.

The spelling of 6397280 in words is "six million, three hundred ninety-seven thousand, two hundred eighty".