404041069 has 4 divisors (see below), whose sum is σ = 421608096. Its totient is φ = 386474044.

The previous prime is 404041067. The next prime is 404041097. The reversal of 404041069 is 960140404.

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 a cyclic number.

It is not a de Polignac number, because 404041069 - 2¹ = 404041067 is a prime.

It is a super-2 number, since 2×404041069² = 326498370877325522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404041063) 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, 8783479 + ... + 8783524.

It is an arithmetic number, because the mean of its divisors is an integer number (105402024).

Almost surely, 2^404041069 is an apocalyptic number.

It is an amenable number.

404041069 is a deficient number, since it is larger than the sum of its proper divisors (17567027).

404041069 is a wasteful number, since it uses less digits than its factorization.

404041069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17567026.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 404041069 is about 20100.7728458385. The cubic root of 404041069 is about 739.2792281822.

The spelling of 404041069 in words is "four hundred four million, forty-one thousand, sixty-nine".