142224402 has 16 divisors (see below), whose sum is σ = 285924960. Its totient is φ = 47162112.

The previous prime is 142224391. The next prime is 142224421. The reversal of 142224402 is 204422241.

142224402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 60252 + ... + 62567.

It is an arithmetic number, because the mean of its divisors is an integer number (17870310).

Almost surely, 2^142224402 is an apocalyptic number.

142224402 is an abundant number, since it is smaller than the sum of its proper divisors (143700558).

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

142224402 is a wasteful number, since it uses less digits than its factorization.

142224402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123017.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 142224402 is about 11925.7872696103. The cubic root of 142224402 is about 521.9850188739.

Adding to 142224402 its reverse (204422241), we get a palindrome (346646643).

The spelling of 142224402 in words is "one hundred forty-two million, two hundred twenty-four thousand, four hundred two".