142421576 has 32 divisors (see below), whose sum is σ = 293133600. Its totient is φ = 64333440.

The previous prime is 142421569. The next prime is 142421593. The reversal of 142421576 is 675124241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9380 + ... + 19308.

It is an arithmetic number, because the mean of its divisors is an integer number (9160425).

Almost surely, 2^142421576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142421576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146566800).

142421576 is an abundant number, since it is smaller than the sum of its proper divisors (150712024).

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

142421576 is a wasteful number, since it uses less digits than its factorization.

142421576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109 (or 10105 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 142421576 is about 11934.0511143534. The cubic root of 142421576 is about 522.2261269329.

The spelling of 142421576 in words is "one hundred forty-two million, four hundred twenty-one thousand, five hundred seventy-six".