404255434 has 12 divisors (see below), whose sum is σ = 666520722. Its totient is φ = 183752360.

The previous prime is 404255363. The next prime is 404255441. The reversal of 404255434 is 434552404.

It can be written as a sum of positive squares in only one way, i.e., 403889409 + 366025 = 20097^2 + 605^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404255396 and 404255405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 834997 + ... + 835480.

Almost surely, 2^404255434 is an apocalyptic number.

404255434 is a deficient number, since it is larger than the sum of its proper divisors (262265288).

404255434 is a wasteful number, since it uses less digits than its factorization.

404255434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670501 (or 1670490 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 404255434 is about 20106.1043964265. The cubic root of 404255434 is about 739.4099472152.

The spelling of 404255434 in words is "four hundred four million, two hundred fifty-five thousand, four hundred thirty-four".