142224432 has 40 divisors (see below), whose sum is σ = 419901696. Its totient is φ = 40635456.

The previous prime is 142224427. The next prime is 142224457. The reversal of 142224432 is 234422241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211308 + ... + 211979.

Almost surely, 2^142224432 is an apocalyptic number.

142224432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142224432 is an abundant number, since it is smaller than the sum of its proper divisors (277677264).

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

142224432 is a wasteful number, since it uses less digits than its factorization.

142224432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423305 (or 423299 counting only the distinct ones).

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

The square root of 142224432 is about 11925.7885273889. The cubic root of 142224432 is about 521.9850555754.

Adding to 142224432 its reverse (234422241), we get a palindrome (376646673).

The spelling of 142224432 in words is "one hundred forty-two million, two hundred twenty-four thousand, four hundred thirty-two".