404395747247 has 8 divisors (see below), whose sum is σ = 407881974192. Its totient is φ = 400915569600.

The previous prime is 404395747229. The next prime is 404395747333. The reversal of 404395747247 is 742747593404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404395747247 - 2⁶ = 404395747183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404395747192 and 404395747201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404395741247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377998 + ... + 1645499.

It is an arithmetic number, because the mean of its divisors is an integer number (50985246774).

Almost surely, 2^404395747247 is an apocalyptic number.

404395747247 is a deficient number, since it is larger than the sum of its proper divisors (3486226945).

404395747247 is a wasteful number, since it uses less digits than its factorization.

404395747247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024649.

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 404395747247 in words is "four hundred four billion, three hundred ninety-five million, seven hundred forty-seven thousand, two hundred forty-seven".