142423422 has 16 divisors (see below), whose sum is σ = 291794832. Its totient is φ = 46316480.

The previous prime is 142423417. The next prime is 142423427. The reversal of 142423422 is 224324241.

It is an interprime number because it is at equal distance from previous prime (142423417) and next prime (142423427).

It is a super-2 number, since 2×142423422² = 40568862268380168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142423392 and 142423401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142423427) 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 7 ways as a sum of consecutive naturals, for example, 289233 + ... + 289724.

It is an arithmetic number, because the mean of its divisors is an integer number (18237177).

Almost surely, 2^142423422 is an apocalyptic number.

142423422 is an abundant number, since it is smaller than the sum of its proper divisors (149371410).

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

142423422 is a wasteful number, since it uses less digits than its factorization.

142423422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579003.

The product of its digits is 3072, while the sum is 24.

The square root of 142423422 is about 11934.1284558195. The cubic root of 142423422 is about 522.2283832045.

Adding to 142423422 its reverse (224324241), we get a palindrome (366747663).

It can be divided in two parts, 142423 and 422, that added together give a triangular number (142845 = T₅₃₄).

The spelling of 142423422 in words is "one hundred forty-two million, four hundred twenty-three thousand, four hundred twenty-two".