8307142242 has 32 divisors (see below), whose sum is σ = 20104682112. Its totient is φ = 2233853184.

The previous prime is 8307142241. The next prime is 8307142267. The reversal of 8307142242 is 2422417038.

It is a happy number.

It is a super-2 number, since 2×8307142242² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8307142241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5816613 + ... + 5818040.

It is an arithmetic number, because the mean of its divisors is an integer number (628271316).

Almost surely, 2^8307142242 is an apocalyptic number.

8307142242 is an abundant number, since it is smaller than the sum of its proper divisors (11797539870).

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

8307142242 is a wasteful number, since it uses less digits than its factorization.

8307142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11634682.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 8307142242 is about 91143.5255078494. The cubic root of 8307142242 is about 2025.2744426697.

The spelling of 8307142242 in words is "eight billion, three hundred seven million, one hundred forty-two thousand, two hundred forty-two".