420000424 has 32 divisors (see below), whose sum is σ = 826067520. Its totient is φ = 199812096.

The previous prime is 420000403. The next prime is 420000439. The reversal of 420000424 is 424000024.

It is a junction number, because it is equal to n+sod(n) for n = 420000398 and 420000407.

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 7 ways as a sum of consecutive naturals, for example, 29599 + ... + 41425.

It is an arithmetic number, because the mean of its divisors is an integer number (25814610).

Almost surely, 2^420000424 is an apocalyptic number.

It is an amenable number.

420000424 is a deficient number, since it is larger than the sum of its proper divisors (406067096).

420000424 is a wasteful number, since it uses less digits than its factorization.

420000424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12049 (or 12045 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 420000424 is about 20493.9118764574. The cubic root of 420000424 is about 748.8874907283.

Adding to 420000424 its reverse (424000024), we get a palindrome (844000448).

The spelling of 420000424 in words is "four hundred twenty million, four hundred twenty-four", and thus it is an aban number.