424443442 has 4 divisors (see below), whose sum is σ = 636665166. Its totient is φ = 212221720.

The previous prime is 424443433. The next prime is 424443443. The reversal of 424443442 is 244344424.

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., 416200801 + 8242641 = 20401^2 + 2871^2 .

It is not an unprimeable number, because it can be changed into a prime (424443443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110859 + ... + 106110862.

Almost surely, 2^424443442 is an apocalyptic number.

424443442 is a deficient number, since it is larger than the sum of its proper divisors (212221724).

424443442 is a wasteful number, since it uses less digits than its factorization.

424443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212221723.

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

The square root of 424443442 is about 20602.0251917136. The cubic root of 424443442 is about 751.5189613023.

Adding to 424443442 its reverse (244344424), we get a palindrome (668787866).

The spelling of 424443442 in words is "four hundred twenty-four million, four hundred forty-three thousand, four hundred forty-two".