404269385 has 32 divisors (see below), whose sum is σ = 533433600. Its totient is φ = 292320000.

The previous prime is 404269381. The next prime is 404269391. The reversal of 404269385 is 583962404.

It is not a de Polignac number, because 404269385 - 2² = 404269381 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (404269381) 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, 1158191 + ... + 1158539.

It is an arithmetic number, because the mean of its divisors is an integer number (16669800).

Almost surely, 2^404269385 is an apocalyptic number.

It is an amenable number.

404269385 is a deficient number, since it is larger than the sum of its proper divisors (129164215).

404269385 is a wasteful number, since it uses less digits than its factorization.

404269385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 404269385 is about 20106.4513278699. The cubic root of 404269385 is about 739.4184528849.

The spelling of 404269385 in words is "four hundred four million, two hundred sixty-nine thousand, three hundred eighty-five".