404551002401 has 32 divisors (see below), whose sum is σ = 498941936640. Its totient is φ = 319421019456.

The previous prime is 404551002371. The next prime is 404551002463. The reversal of 404551002401 is 104200155404.

It is a de Polignac number, because none of the positive numbers 2^k-404551002401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404551002001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163983770 + ... + 163986236.

It is an arithmetic number, because the mean of its divisors is an integer number (15591935520).

Almost surely, 2^404551002401 is an apocalyptic number.

It is an amenable number.

404551002401 is a deficient number, since it is larger than the sum of its proper divisors (94390934239).

404551002401 is a wasteful number, since it uses less digits than its factorization.

404551002401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 404551002401 its reverse (104200155404), we get a palindrome (508751157805).

The spelling of 404551002401 in words is "four hundred four billion, five hundred fifty-one million, two thousand, four hundred one".