545420044 has 24 divisors (see below), whose sum is σ = 1088373888. Its totient is φ = 236924160.

The previous prime is 545420021. The next prime is 545420047. The reversal of 545420044 is 440024545.

It is a junction number, because it is equal to n+sod(n) for n = 545419994 and 545420021.

It is not an unprimeable number, because it can be changed into a prime (545420047) 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, 307612 + ... + 309379.

It is an arithmetic number, because the mean of its divisors is an integer number (45348912).

Almost surely, 2^545420044 is an apocalyptic number.

It is an amenable number.

545420044 is a deficient number, since it is larger than the sum of its proper divisors (542953844).

545420044 is a wasteful number, since it uses less digits than its factorization.

545420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617025 (or 617023 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 545420044 is about 23354.2296811520. The cubic root of 545420044 is about 817.0407132488.

Adding to 545420044 its reverse (440024545), we get a palindrome (985444589).

The spelling of 545420044 in words is "five hundred forty-five million, four hundred twenty thousand, forty-four".