404256265 has 32 divisors (see below), whose sum is σ = 571451904. Its totient is φ = 268738560.

The previous prime is 404256263. The next prime is 404256271. The reversal of 404256265 is 562652404.

It is not a de Polignac number, because 404256265 - 2¹ = 404256263 is a prime.

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 404256265.

It is not an unprimeable number, because it can be changed into a prime (404256263) 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 31 ways as a sum of consecutive naturals, for example, 630345 + ... + 630985.

It is an arithmetic number, because the mean of its divisors is an integer number (17857872).

Almost surely, 2^404256265 is an apocalyptic number.

It is an amenable number.

404256265 is a deficient number, since it is larger than the sum of its proper divisors (167195639).

404256265 is a wasteful number, since it uses less digits than its factorization.

404256265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 404256265 is about 20106.1250617815. The cubic root of 404256265 is about 739.4104538662.

The spelling of 404256265 in words is "four hundred four million, two hundred fifty-six thousand, two hundred sixty-five".