142432740 has 72 divisors (see below), whose sum is σ = 454796160. Its totient is φ = 35982144.

The previous prime is 142432723. The next prime is 142432747. The reversal of 142432740 is 47234241.

It is not an unprimeable number, because it can be changed into a prime (142432747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17404 + ... + 24243.

Almost surely, 2^142432740 is an apocalyptic number.

142432740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142432740 is an abundant number, since it is smaller than the sum of its proper divisors (312363420).

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

142432740 is a wasteful number, since it uses less digits than its factorization.

142432740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41681 (or 41676 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 142432740 is about 11934.5188424167. The cubic root of 142432740 is about 522.2397718227.

Adding to 142432740 its reverse (47234241), we get a palindrome (189666981).

The spelling of 142432740 in words is "one hundred forty-two million, four hundred thirty-two thousand, seven hundred forty".