404704056137 has 4 divisors (see below), whose sum is σ = 405260733696. Its totient is φ = 404147378580.

The previous prime is 404704056109. The next prime is 404704056173. The reversal of 404704056137 is 731650407404.

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 404704056137 - 2²⁴ = 404687278921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404704056094 and 404704056103.

It is not an unprimeable number, because it can be changed into a prime (404704056187) 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, 278337689 + ... + 278339142.

It is an arithmetic number, because the mean of its divisors is an integer number (101315183424).

Almost surely, 2^404704056137 is an apocalyptic number.

It is an amenable number.

404704056137 is a deficient number, since it is larger than the sum of its proper divisors (556677559).

404704056137 is an equidigital number, since it uses as much as digits as its factorization.

404704056137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556677558.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 404704056137 in words is "four hundred four billion, seven hundred four million, fifty-six thousand, one hundred thirty-seven".