424434442 has 4 divisors (see below), whose sum is σ = 636651666. Its totient is φ = 212217220.

The previous prime is 424434389. The next prime is 424434443. The reversal of 424434442 is 244434424.

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

It can be written as a sum of positive squares in only one way, i.e., 339996721 + 84437721 = 18439^2 + 9189^2 .

It is not an unprimeable number, because it can be changed into a prime (424434443) by changing a digit.

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, 106108609 + ... + 106108612.

Almost surely, 2^424434442 is an apocalyptic number.

424434442 is a deficient number, since it is larger than the sum of its proper divisors (212217224).

424434442 is a wasteful number, since it uses less digits than its factorization.

424434442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212217223.

The product of its digits is 49152, while the sum is 31.

The square root of 424434442 is about 20601.8067654272. The cubic root of 424434442 is about 751.5136494690.

Adding to 424434442 its reverse (244434424), we get a palindrome (668868866).

The spelling of 424434442 in words is "four hundred twenty-four million, four hundred thirty-four thousand, four hundred forty-two".