142589436 has 24 divisors (see below), whose sum is σ = 362955264. Its totient is φ = 43208880.

The previous prime is 142589417. The next prime is 142589437. The reversal of 142589436 is 634985241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142589437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539980 + ... + 540243.

It is an arithmetic number, because the mean of its divisors is an integer number (15123136).

Almost surely, 2^142589436 is an apocalyptic number.

It is an amenable number.

142589436 is an abundant number, since it is smaller than the sum of its proper divisors (220365828).

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

142589436 is a wasteful number, since it uses less digits than its factorization.

142589436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080241 (or 1080239 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 142589436 is about 11941.0818605351. The cubic root of 142589436 is about 522.4312139785.

The spelling of 142589436 in words is "one hundred forty-two million, five hundred eighty-nine thousand, four hundred thirty-six".