142342330 has 64 divisors (see below), whose sum is σ = 287165088. Its totient is φ = 50457600.

The previous prime is 142342327. The next prime is 142342339. The reversal of 142342330 is 33243241.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 90459121 + 51883209 = 9511^2 + 7203^2 .

It is a super-2 number, since 2×142342330² = 40522677819657800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142342339) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 485664 + ... + 485956.

Almost surely, 2^142342330 is an apocalyptic number.

142342330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142342330 is an abundant number, since it is smaller than the sum of its proper divisors (144822758).

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

142342330 is a wasteful number, since it uses less digits than its factorization.

142342330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 142342330 is about 11930.7304889516. The cubic root of 142342330 is about 522.1292502029.

Adding to 142342330 its reverse (33243241), we get a palindrome (175585571).

The spelling of 142342330 in words is "one hundred forty-two million, three hundred forty-two thousand, three hundred thirty".