404502425 has 12 divisors (see below), whose sum is σ = 502126716. Its totient is φ = 323251200.

The previous prime is 404502391. The next prime is 404502443. The reversal of 404502425 is 524205404.

It can be written as a sum of positive squares in 6 ways, for example, as 10995856 + 393506569 = 3316^2 + 19837^2 .

It is not a de Polignac number, because 404502425 - 2⁶ = 404502361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404502394 and 404502403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16145 + ... + 32705.

It is an arithmetic number, because the mean of its divisors is an integer number (41843893).

Almost surely, 2^404502425 is an apocalyptic number.

It is an amenable number.

404502425 is a deficient number, since it is larger than the sum of its proper divisors (97624291).

404502425 is a wasteful number, since it uses less digits than its factorization.

404502425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548 (or 17543 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 404502425 is about 20112.2456478634. The cubic root of 404502425 is about 739.5605041863.

Adding to 404502425 its reverse (524205404), we get a palindrome (928707829).

It can be divided in two parts, 40450 and 2425, that added together give a cube (42875 = 35³).

The spelling of 404502425 in words is "four hundred four million, five hundred two thousand, four hundred twenty-five".