142234424 has 8 divisors (see below), whose sum is σ = 266689560. Its totient is φ = 71117208.

The previous prime is 142234423. The next prime is 142234447. The reversal of 142234424 is 424432241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×142234424² = 40461262741223552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142234393 and 142234402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142234423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8889644 + ... + 8889659.

It is an arithmetic number, because the mean of its divisors is an integer number (33336195).

Almost surely, 2^142234424 is an apocalyptic number.

It is an amenable number.

142234424 is a deficient number, since it is larger than the sum of its proper divisors (124455136).

142234424 is a wasteful number, since it uses less digits than its factorization.

142234424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17779309 (or 17779305 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 142234424 is about 11926.2074441123. The cubic root of 142234424 is about 521.9972793368.

Adding to 142234424 its reverse (424432241), we get a palindrome (566666665).

The spelling of 142234424 in words is "one hundred forty-two million, two hundred thirty-four thousand, four hundred twenty-four".