142240030 has 16 divisors (see below), whose sum is σ = 256292064. Its totient is φ = 56838240.

The previous prime is 142240009. The next prime is 142240039. The reversal of 142240030 is 30042241.

142240030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142240030² = 40464452268801800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142239986 and 142240013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142240039) 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, 3940 + ... + 17320.

It is an arithmetic number, because the mean of its divisors is an integer number (16018254).

Almost surely, 2^142240030 is an apocalyptic number.

142240030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142240030 is a deficient number, since it is larger than the sum of its proper divisors (114052034).

142240030 is a wasteful number, since it uses less digits than its factorization.

142240030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14451.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 142240030 is about 11926.4424704100. The cubic root of 142240030 is about 522.0041372132.

Adding to 142240030 its reverse (30042241), we get a palindrome (172282271).

The spelling of 142240030 in words is "one hundred forty-two million, two hundred forty thousand, thirty".