545443404 has 48 divisors (see below), whose sum is σ = 1391644800. Its totient is φ = 164899840.

The previous prime is 545443399. The next prime is 545443411. The reversal of 545443404 is 404344545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 15 ways as a sum of consecutive naturals, for example, 54667 + ... + 63869.

It is an arithmetic number, because the mean of its divisors is an integer number (28992600).

Almost surely, 2^545443404 is an apocalyptic number.

It is an amenable number.

545443404 is an abundant number, since it is smaller than the sum of its proper divisors (846201396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545443404 is a wasteful number, since it uses less digits than its factorization.

545443404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670 (or 9668 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

The square root of 545443404 is about 23354.7297993362. The cubic root of 545443404 is about 817.0523775302.

Adding to 545443404 its reverse (404344545), we get a palindrome (949787949).

The spelling of 545443404 in words is "five hundred forty-five million, four hundred forty-three thousand, four hundred four".