404513545 has 8 divisors (see below), whose sum is σ = 485536896. Its totient is φ = 323530416.

The previous prime is 404513539. The next prime is 404513561. The reversal of 404513545 is 545315404.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404513545 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20544 + ... + 35086.

It is an arithmetic number, because the mean of its divisors is an integer number (60692112).

Almost surely, 2^404513545 is an apocalyptic number.

It is an amenable number.

404513545 is a deficient number, since it is larger than the sum of its proper divisors (81023351).

404513545 is a wasteful number, since it uses less digits than its factorization.

404513545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20111.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 404513545 is about 20112.5220944565. The cubic root of 404513545 is about 739.5672811028.

Adding to 404513545 its reverse (545315404), we get a palindrome (949828949).

The spelling of 404513545 in words is "four hundred four million, five hundred thirteen thousand, five hundred forty-five".