142489430 has 32 divisors (see below), whose sum is σ = 265590144. Its totient is φ = 55005696.

The previous prime is 142489429. The next prime is 142489433. The reversal of 142489430 is 34984241.

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 15 ways as a sum of consecutive naturals, for example, 32234 + ... + 36386.

It is an arithmetic number, because the mean of its divisors is an integer number (8299692).

Almost surely, 2^142489430 is an apocalyptic number.

142489430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142489430 is a deficient number, since it is larger than the sum of its proper divisors (123100714).

142489430 is a wasteful number, since it uses less digits than its factorization.

142489430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 142489430 is about 11936.8936495221. The cubic root of 142489430 is about 522.3090486049.

The spelling of 142489430 in words is "one hundred forty-two million, four hundred eighty-nine thousand, four hundred thirty".