420442012 has 24 divisors (see below), whose sum is σ = 749000672. Its totient is φ = 206452800.

The previous prime is 420442007. The next prime is 420442027. The reversal of 420442012 is 210244024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258562 + ... + 260182.

Almost surely, 2^420442012 is an apocalyptic number.

It is an amenable number.

420442012 is a deficient number, since it is larger than the sum of its proper divisors (328558660).

420442012 is a wasteful number, since it uses less digits than its factorization.

420442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749 (or 2747 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 420442012 is about 20504.6826846942. The cubic root of 420442012 is about 749.1498586362.

Adding to 420442012 its reverse (210244024), we get a palindrome (630686036).

The spelling of 420442012 in words is "four hundred twenty million, four hundred forty-two thousand, twelve".