404412501 has 4 divisors (see below), whose sum is σ = 539216672. Its totient is φ = 269608332.

The previous prime is 404412499. The next prime is 404412523. The reversal of 404412501 is 105214404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 404412501 - 2¹ = 404412499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404412401) 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 3 ways as a sum of consecutive naturals, for example, 67402081 + ... + 67402086.

It is an arithmetic number, because the mean of its divisors is an integer number (134804168).

Almost surely, 2^404412501 is an apocalyptic number.

It is an amenable number.

404412501 is a deficient number, since it is larger than the sum of its proper divisors (134804171).

404412501 is a wasteful number, since it uses less digits than its factorization.

404412501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134804170.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 404412501 is about 20110.0099701616. The cubic root of 404412501 is about 739.5056967955.

Adding to 404412501 its reverse (105214404), we get a palindrome (509626905).

The spelling of 404412501 in words is "four hundred four million, four hundred twelve thousand, five hundred one".