6380280421 has 8 divisors (see below), whose sum is σ = 6866339544. Its totient is φ = 5906526720.

The previous prime is 6380280419. The next prime is 6380280437. The reversal of 6380280421 is 1240820836.

It can be written as a sum of positive squares in 4 ways, for example, as 1371887521 + 5008392900 = 37039^2 + 70770^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6380280421 - 2¹ = 6380280419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6380280121) 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, 3075280 + ... + 3077353.

It is an arithmetic number, because the mean of its divisors is an integer number (858292443).

Almost surely, 2^6380280421 is an apocalyptic number.

6380280421 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6380280421 is a deficient number, since it is larger than the sum of its proper divisors (486059123).

6380280421 is a wasteful number, since it uses less digits than its factorization.

6380280421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152711.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 6380280421 is about 79876.6575477467. The cubic root of 6380280421 is about 1854.7266929023.

The spelling of 6380280421 in words is "six billion, three hundred eighty million, two hundred eighty thousand, four hundred twenty-one".