545430 has 16 divisors (see below), whose sum is σ = 1309104. Its totient is φ = 145440.

The previous prime is 545429. The next prime is 545437. The reversal of 545430 is 34545.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 545397 and 545406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545437) 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, 9061 + ... + 9120.

It is an arithmetic number, because the mean of its divisors is an integer number (81819).

2⁵⁴⁵⁴³⁰ is an apocalyptic number.

545430 is an abundant number, since it is smaller than the sum of its proper divisors (763674).

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

545430 is a wasteful number, since it uses less digits than its factorization.

545430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 545430 is about 738.5323283378. The cubic root of 545430 is about 81.7045684590.

Adding to 545430 its reverse (34545), we get a palindrome (579975).

The spelling of 545430 in words is "five hundred forty-five thousand, four hundred thirty".