404252401 has 24 divisors (see below), whose sum is σ = 504299520. Its totient is φ = 321939072.

The previous prime is 404252377. The next prime is 404252441. The reversal of 404252401 is 104252404.

It is a happy number.

It is not a de Polignac number, because 404252401 - 2⁹ = 404251889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404252441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62736 + ... + 68878.

It is an arithmetic number, because the mean of its divisors is an integer number (21012480).

Almost surely, 2^404252401 is an apocalyptic number.

It is an amenable number.

404252401 is a deficient number, since it is larger than the sum of its proper divisors (100047119).

404252401 is a wasteful number, since it uses less digits than its factorization.

404252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253 (or 6246 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 404252401 is about 20106.0289714304. The cubic root of 404252401 is about 739.4080980247.

The spelling of 404252401 in words is "four hundred four million, two hundred fifty-two thousand, four hundred one".