545440452 has 48 divisors (see below), whose sum is σ = 1302642432. Its totient is φ = 177552640.

The previous prime is 545440397. The next prime is 545440457. The reversal of 545440452 is 254044545.

It is not an unprimeable number, because it can be changed into a prime (545440457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367552 + ... + 369032.

It is an arithmetic number, because the mean of its divisors is an integer number (27138384).

Almost surely, 2^545440452 is an apocalyptic number.

It is an amenable number.

545440452 is an abundant number, since it is smaller than the sum of its proper divisors (757201980).

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

545440452 is a wasteful number, since it uses less digits than its factorization.

545440452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 33.

The square root of 545440452 is about 23354.6666000609. Note that the first 4 decimals coincide. The cubic root of 545440452 is about 817.0509035349.

Adding to 545440452 its reverse (254044545), we get a palindrome (799484997).

The spelling of 545440452 in words is "five hundred forty-five million, four hundred forty thousand, four hundred fifty-two".