424215442 has 24 divisors (see below), whose sum is σ = 740925900. Its totient is φ = 181631520.

The previous prime is 424215437. The next prime is 424215469. The reversal of 424215442 is 244512424.

It can be written as a sum of positive squares in 2 ways, for example, as 397165041 + 27050401 = 19929^2 + 5201^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 424215442.

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 11 ways as a sum of consecutive naturals, for example, 189892 + ... + 192112.

Almost surely, 2^424215442 is an apocalyptic number.

424215442 is a deficient number, since it is larger than the sum of its proper divisors (316710458).

424215442 is a wasteful number, since it uses less digits than its factorization.

424215442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186 (or 4179 counting only the distinct ones).

The product of its digits is 10240, while the sum is 28.

The square root of 424215442 is about 20596.4910118204. The cubic root of 424215442 is about 751.3843717070.

Adding to 424215442 its reverse (244512424), we get a palindrome (668727866).

The spelling of 424215442 in words is "four hundred twenty-four million, two hundred fifteen thousand, four hundred forty-two".