8140667420 has 48 divisors (see below), whose sum is σ = 18015513600. Its totient is φ = 3081395520.

The previous prime is 8140667387. The next prime is 8140667429. The reversal of 8140667420 is 247660418.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140667429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337565 + ... + 360875.

It is an arithmetic number, because the mean of its divisors is an integer number (375323200).

Almost surely, 2^8140667420 is an apocalyptic number.

It is an amenable number.

8140667420 is an abundant number, since it is smaller than the sum of its proper divisors (9874846180).

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

8140667420 is a wasteful number, since it uses less digits than its factorization.

8140667420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24258 (or 24256 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 8140667420 is about 90225.6472406821. The cubic root of 8140667420 is about 2011.6542424090.

The spelling of 8140667420 in words is "eight billion, one hundred forty million, six hundred sixty-seven thousand, four hundred twenty".