142489432 has 32 divisors (see below), whose sum is σ = 275526720. Its totient is φ = 69039360.

The previous prime is 142489429. The next prime is 142489433. The reversal of 142489432 is 234984241.

It is a junction number, because it is equal to n+sod(n) for n = 142489391 and 142489400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142489433) 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, 50113 + ... + 52879.

It is an arithmetic number, because the mean of its divisors is an integer number (8610210).

Almost surely, 2^142489432 is an apocalyptic number.

It is an amenable number.

142489432 is a deficient number, since it is larger than the sum of its proper divisors (133037288).

142489432 is a wasteful number, since it uses less digits than its factorization.

142489432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2967 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 142489432 is about 11936.8937332959. The cubic root of 142489432 is about 522.3090510487.

The spelling of 142489432 in words is "one hundred forty-two million, four hundred eighty-nine thousand, four hundred thirty-two".