8002421493 has 8 divisors (see below), whose sum is σ = 11639885856. Its totient is φ = 4849952400.

The previous prime is 8002421447. The next prime is 8002421507. The reversal of 8002421493 is 3941242008.

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

It is not a de Polignac number, because 8002421493 - 2²¹ = 8000324341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 242497621 = 8002421493 / (8 + 0 + 0 + 2 + 4 + 2 + 1 + 4 + 9 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8002421423) 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, 121248778 + ... + 121248843.

It is an arithmetic number, because the mean of its divisors is an integer number (1454985732).

Almost surely, 2^8002421493 is an apocalyptic number.

It is an amenable number.

8002421493 is a deficient number, since it is larger than the sum of its proper divisors (3637464363).

8002421493 is a wasteful number, since it uses less digits than its factorization.

8002421493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242497635.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 8002421493 is about 89456.2546332005. The cubic root of 8002421493 is about 2000.2017707269.

The spelling of 8002421493 in words is "eight billion, two million, four hundred twenty-one thousand, four hundred ninety-three".