404263253 has 8 divisors (see below), whose sum is σ = 413939328. Its totient is φ = 394599744.

The previous prime is 404263243. The next prime is 404263259. The reversal of 404263253 is 352362404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404263253 - 2⁸ = 404262997 is a prime.

It is a super-2 number, since 2×404263253² = 326857555452284018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404263259) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 107501 + ... + 111197.

It is an arithmetic number, because the mean of its divisors is an integer number (51742416).

Almost surely, 2^404263253 is an apocalyptic number.

404263253 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

404263253 is a deficient number, since it is larger than the sum of its proper divisors (9676075).

404263253 is a wasteful number, since it uses less digits than its factorization.

404263253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 404263253 is about 20106.2988389211. The cubic root of 404263253 is about 739.4147143407.

The spelling of 404263253 in words is "four hundred four million, two hundred sixty-three thousand, two hundred fifty-three".