6421360 has 40 divisors (see below), whose sum is σ = 16289136. Its totient is φ = 2334720.

The previous prime is 6421351. The next prime is 6421361. The reversal of 6421360 is 631246.

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

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2769 + ... + 4528.

Almost surely, 2^6421360 is an apocalyptic number.

It is an amenable number.

6421360 is an abundant number, since it is smaller than the sum of its proper divisors (9867776).

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

6421360 is a wasteful number, since it uses less digits than its factorization.

6421360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6421360 is about 2534.0402522454. The cubic root of 6421360 is about 185.8698746851.

It can be divided in two parts, 642 and 1360, that added together give a palindrome (2002).

The spelling of 6421360 in words is "six million, four hundred twenty-one thousand, three hundred sixty".