8420210142 has 32 divisors (see below), whose sum is σ = 17537541120. Its totient is φ = 2692152960.

The previous prime is 8420210119. The next prime is 8420210159. The reversal of 8420210142 is 2410120248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179292 + ... + 221327.

It is an arithmetic number, because the mean of its divisors is an integer number (548048160).

Almost surely, 2^8420210142 is an apocalyptic number.

8420210142 is an abundant number, since it is smaller than the sum of its proper divisors (9117330978).

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

8420210142 is a wasteful number, since it uses less digits than its factorization.

8420210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400768.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 8420210142 is about 91761.7030247369. The cubic root of 8420210142 is about 2034.4216868519.

The spelling of 8420210142 in words is "eight billion, four hundred twenty million, two hundred ten thousand, one hundred forty-two".