404135201 has 4 divisors (see below), whose sum is σ = 415057812. Its totient is φ = 393212592.

The previous prime is 404135197. The next prime is 404135219. The reversal of 404135201 is 102531404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 331203601 + 72931600 = 18199^2 + 8540^2 .

It is a cyclic number.

It is not a de Polignac number, because 404135201 - 2² = 404135197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404138201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5461250 + ... + 5461323.

It is an arithmetic number, because the mean of its divisors is an integer number (103764453).

Almost surely, 2^404135201 is an apocalyptic number.

It is an amenable number.

404135201 is a deficient number, since it is larger than the sum of its proper divisors (10922611).

404135201 is a wasteful number, since it uses less digits than its factorization.

404135201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10922610.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 404135201 is about 20103.1142114847. The cubic root of 404135201 is about 739.3366352415.

Adding to 404135201 its reverse (102531404), we get a palindrome (506666605).

The spelling of 404135201 in words is "four hundred four million, one hundred thirty-five thousand, two hundred one".