424220042 has 8 divisors (see below), whose sum is σ = 636432132. Its totient is φ = 212076000.

The previous prime is 424220039. The next prime is 424220053. The reversal of 424220042 is 240022424.

It can be written as a sum of positive squares in 2 ways, for example, as 391604521 + 32615521 = 19789^2 + 5711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 424219996 and 424220023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3542 + ... + 29342.

Almost surely, 2^424220042 is an apocalyptic number.

424220042 is a deficient number, since it is larger than the sum of its proper divisors (212212090).

424220042 is a wasteful number, since it uses less digits than its factorization.

424220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34024.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 424220042 is about 20596.6026810248. The cubic root of 424220042 is about 751.3870875877.

Adding to 424220042 its reverse (240022424), we get a palindrome (664242466).

The spelling of 424220042 in words is "four hundred twenty-four million, two hundred twenty thousand, forty-two".