142442030 has 16 divisors (see below), whose sum is σ = 256658544. Its totient is φ = 56918400.

The previous prime is 142442029. The next prime is 142442071. The reversal of 142442030 is 30244241.

It is a junction number, because it is equal to n+sod(n) for n = 142441993 and 142442011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3734 + ... + 17286.

It is an arithmetic number, because the mean of its divisors is an integer number (16041159).

Almost surely, 2^142442030 is an apocalyptic number.

142442030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142442030 is a deficient number, since it is larger than the sum of its proper divisors (114216514).

142442030 is a wasteful number, since it uses less digits than its factorization.

142442030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14611.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142442030 is about 11934.9080432151. The cubic root of 142442030 is about 522.2511257245.

Adding to 142442030 its reverse (30244241), we get a palindrome (172686271).

The spelling of 142442030 in words is "one hundred forty-two million, four hundred forty-two thousand, thirty".