424420142 has 4 divisors (see below), whose sum is σ = 636630216. Its totient is φ = 212210070.

The previous prime is 424420121. The next prime is 424420187. The reversal of 424420142 is 241024424.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 106105034 + ... + 106105037.

It is an arithmetic number, because the mean of its divisors is an integer number (159157554).

Almost surely, 2^424420142 is an apocalyptic number.

424420142 is a deficient number, since it is larger than the sum of its proper divisors (212210074).

424420142 is a wasteful number, since it uses less digits than its factorization.

424420142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212210073.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 424420142 is about 20601.4597055646. The cubic root of 424420142 is about 751.5052094016.

Adding to 424420142 its reverse (241024424), we get a palindrome (665444566).

The spelling of 424420142 in words is "four hundred twenty-four million, four hundred twenty thousand, one hundred forty-two".