404645488449 has 32 divisors (see below), whose sum is σ = 569317493760. Its totient is φ = 254938881600.

The previous prime is 404645488441. The next prime is 404645488451. The reversal of 404645488449 is 944884546404.

It is not a de Polignac number, because 404645488449 - 2³ = 404645488441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404645488392 and 404645488401.

It is not an unprimeable number, because it can be changed into a prime (404645488441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72371644 + ... + 72377234.

It is an arithmetic number, because the mean of its divisors is an integer number (17791171680).

Almost surely, 2^404645488449 is an apocalyptic number.

It is an amenable number.

404645488449 is a deficient number, since it is larger than the sum of its proper divisors (164672005311).

404645488449 is a wasteful number, since it uses less digits than its factorization.

404645488449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501.

The product of its (nonzero) digits is 70778880, while the sum is 60.

The spelling of 404645488449 in words is "four hundred four billion, six hundred forty-five million, four hundred eighty-eight thousand, four hundred forty-nine".