404258253 has 16 divisors (see below), whose sum is σ = 618124416. Its totient is φ = 230212800.

The previous prime is 404258227. The next prime is 404258273. The reversal of 404258253 is 352852404.

It is not a de Polignac number, because 404258253 - 2¹⁶ = 404192717 is a prime.

It is a super-2 number, since 2×404258253² = 326849470237224018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404258273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26698 + ... + 39003.

It is an arithmetic number, because the mean of its divisors is an integer number (38632776).

Almost surely, 2^404258253 is an apocalyptic number.

It is an amenable number.

404258253 is a deficient number, since it is larger than the sum of its proper divisors (213866163).

404258253 is a wasteful number, since it uses less digits than its factorization.

404258253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66004.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 404258253 is about 20106.1744993920. The cubic root of 404258253 is about 739.4116659238.

The spelling of 404258253 in words is "four hundred four million, two hundred fifty-eight thousand, two hundred fifty-three".