8420733834 has 16 divisors (see below), whose sum is σ = 16850510688. Its totient is φ = 2805404112.

The previous prime is 8420733821. The next prime is 8420733869. The reversal of 8420733834 is 4383370248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364657 + ... + 387060.

It is an arithmetic number, because the mean of its divisors is an integer number (1053156918).

Almost surely, 2^8420733834 is an apocalyptic number.

8420733834 is an abundant number, since it is smaller than the sum of its proper divisors (8429776854).

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

8420733834 is a wasteful number, since it uses less digits than its factorization.

8420733834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753589.

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 8420733834 is about 91764.5565237472. The cubic root of 8420733834 is about 2034.4638626907.

The spelling of 8420733834 in words is "eight billion, four hundred twenty million, seven hundred thirty-three thousand, eight hundred thirty-four".