545340330 has 64 divisors (see below), whose sum is σ = 1462406400. Its totient is φ = 144607680.

The previous prime is 545340317. The next prime is 545340359. The reversal of 545340330 is 33043545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 545340294 and 545340303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43291 + ... + 54449.

It is an arithmetic number, because the mean of its divisors is an integer number (22850100).

Almost surely, 2^545340330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545340330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731203200).

545340330 is an abundant number, since it is smaller than the sum of its proper divisors (917066070).

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

545340330 is a wasteful number, since it uses less digits than its factorization.

545340330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11356 (or 11350 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 545340330 is about 23352.5229900326. The cubic root of 545340330 is about 817.0009073797. Note that the first 3 decimals are identical.

Adding to 545340330 its reverse (33043545), we get a palindrome (578383875).

The spelling of 545340330 in words is "five hundred forty-five million, three hundred forty thousand, three hundred thirty".