404256697041 has 4 divisors (see below), whose sum is σ = 539008929392. Its totient is φ = 269504464692.

The previous prime is 404256697037. The next prime is 404256697063. The reversal of 404256697041 is 140796652404.

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 404256697041 - 2² = 404256697037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404256697021) 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, 67376116171 + ... + 67376116176.

It is an arithmetic number, because the mean of its divisors is an integer number (134752232348).

Almost surely, 2^404256697041 is an apocalyptic number.

It is an amenable number.

404256697041 is a deficient number, since it is larger than the sum of its proper divisors (134752232351).

404256697041 is a wasteful number, since it uses less digits than its factorization.

404256697041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134752232350.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 404256697041 in words is "four hundred four billion, two hundred fifty-six million, six hundred ninety-seven thousand, forty-one".