404330020425 has 36 divisors (see below), whose sum is σ = 724287695820. Its totient is φ = 215616562560.

The previous prime is 404330020417. The next prime is 404330020447. The reversal of 404330020425 is 524020033404.

404330020425 is a `hidden beast` number, since 4 + 0 + 433 + 0 + 0 + 204 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 9668395584 + 394661624841 = 98328^2 + 628221^2 .

It is not a de Polignac number, because 404330020425 - 2³ = 404330020417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1829811 + ... + 2038839.

Almost surely, 2^404330020425 is an apocalyptic number.

404330020425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

404330020425 is a deficient number, since it is larger than the sum of its proper divisors (319957675395).

404330020425 is a wasteful number, since it uses less digits than its factorization.

404330020425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217642 (or 217634 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 404330020425 its reverse (524020033404), we get a palindrome (928350053829).

The spelling of 404330020425 in words is "four hundred four billion, three hundred thirty million, twenty thousand, four hundred twenty-five".