404303425 has 12 divisors (see below), whose sum is σ = 509556796. Its totient is φ = 318139200.

The previous prime is 404303399. The next prime is 404303437. The reversal of 404303425 is 524303404.

It can be written as a sum of positive squares in 6 ways, for example, as 89737729 + 314565696 = 9473^2 + 17736^2 .

It is a de Polignac number, because none of the positive numbers 2^k-404303425 is a prime.

It is a super-2 number, since 2×404303425² = 326922518933461250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404303425.

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 11 ways as a sum of consecutive naturals, for example, 131034 + ... + 134083.

Almost surely, 2^404303425 is an apocalyptic number.

It is an amenable number.

404303425 is a deficient number, since it is larger than the sum of its proper divisors (105253371).

404303425 is a wasteful number, since it uses less digits than its factorization.

404303425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265188 (or 265183 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 404303425 is about 20107.2978045286. The cubic root of 404303425 is about 739.4392056293.

Adding to 404303425 its reverse (524303404), we get a palindrome (928606829).

The spelling of 404303425 in words is "four hundred four million, three hundred three thousand, four hundred twenty-five".