404420124 has 12 divisors (see below), whose sum is σ = 943646984. Its totient is φ = 134806704.

The previous prime is 404420119. The next prime is 404420143. The reversal of 404420124 is 421024404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 404420124.

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, 16850827 + ... + 16850850.

Almost surely, 2^404420124 is an apocalyptic number.

It is an amenable number.

404420124 is an abundant number, since it is smaller than the sum of its proper divisors (539226860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404420124 is a wasteful number, since it uses less digits than its factorization.

404420124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33701684 (or 33701682 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 404420124 is about 20110.1995017454. The cubic root of 404420124 is about 739.5103432200.

Adding to 404420124 its reverse (421024404), we get a palindrome (825444528).

The spelling of 404420124 in words is "four hundred four million, four hundred twenty thousand, one hundred twenty-four".