404122413 has 4 divisors (see below), whose sum is σ = 538829888. Its totient is φ = 269414940.

The previous prime is 404122391. The next prime is 404122427. The reversal of 404122413 is 314221404.

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 404122413 - 2⁶ = 404122349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404122413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404122613) 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, 67353733 + ... + 67353738.

It is an arithmetic number, because the mean of its divisors is an integer number (134707472).

Almost surely, 2^404122413 is an apocalyptic number.

It is an amenable number.

404122413 is a deficient number, since it is larger than the sum of its proper divisors (134707475).

404122413 is a wasteful number, since it uses less digits than its factorization.

404122413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134707474.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 404122413 is about 20102.7961487948. The cubic root of 404122413 is about 739.3288369134.

Adding to 404122413 its reverse (314221404), we get a palindrome (718343817).

The spelling of 404122413 in words is "four hundred four million, one hundred twenty-two thousand, four hundred thirteen".