420024404 has 12 divisors (see below), whose sum is σ = 737972928. Its totient is φ = 209175000.

The previous prime is 420024379. The next prime is 420024439. The reversal of 420024404 is 404420024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208172 + ... + 210179.

It is an arithmetic number, because the mean of its divisors is an integer number (61497744).

Almost surely, 2^420024404 is an apocalyptic number.

It is an amenable number.

420024404 is a deficient number, since it is larger than the sum of its proper divisors (317948524).

420024404 is a wasteful number, since it uses less digits than its factorization.

420024404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418606 (or 418604 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 420024404 is about 20494.4969199051. The cubic root of 420024404 is about 748.9017430792.

Adding to 420024404 its reverse (404420024), we get a palindrome (824444428).

The spelling of 420024404 in words is "four hundred twenty million, twenty-four thousand, four hundred four".