8489042142 has 32 divisors (see below), whose sum is σ = 19799520000. Its totient is φ = 2425440024.

The previous prime is 8489042131. The next prime is 8489042153. The reversal of 8489042142 is 2412409848.

It is an interprime number because it is at equal distance from previous prime (8489042131) and next prime (8489042153).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 8489042094 and 8489042103.

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, 2060392 + ... + 2064507.

It is an arithmetic number, because the mean of its divisors is an integer number (618735000).

Almost surely, 2^8489042142 is an apocalyptic number.

8489042142 is an abundant number, since it is smaller than the sum of its proper divisors (11310477858).

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

8489042142 is a wasteful number, since it uses less digits than its factorization.

8489042142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124925 (or 4124911 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 8489042142 is about 92135.9980789268. The cubic root of 8489042142 is about 2039.9501895758.

The spelling of 8489042142 in words is "eight billion, four hundred eighty-nine million, forty-two thousand, one hundred forty-two".