404425238 has 32 divisors (see below), whose sum is σ = 725345280. Its totient is φ = 165353760.

The previous prime is 404425201. The next prime is 404425267. The reversal of 404425238 is 832524404.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 139928 + ... + 142788.

It is an arithmetic number, because the mean of its divisors is an integer number (22667040).

Almost surely, 2^404425238 is an apocalyptic number.

404425238 is a deficient number, since it is larger than the sum of its proper divisors (320920042).

404425238 is a wasteful number, since it uses less digits than its factorization.

404425238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 404425238 is about 20110.3266507533. The cubic root of 404425238 is about 739.5134603085.

The spelling of 404425238 in words is "four hundred four million, four hundred twenty-five thousand, two hundred thirty-eight".