546780 has 48 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 134400.

The previous prime is 546739. The next prime is 546781. The reversal of 546780 is 87645.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546781) by changing a digit.

546780 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 430 + ... + 1130.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2⁵⁴⁶⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 546780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825552).

546780 is an abundant number, since it is smaller than the sum of its proper divisors (1104324).

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

546780 is a wasteful number, since it uses less digits than its factorization.

546780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 546780 is about 739.4457383744. The cubic root of 546780 is about 81.7719222226.

It can be divided in two parts, 546 and 780, that added together give a triangular number (1326 = T₅₁).

The spelling of 546780 in words is "five hundred forty-six thousand, seven hundred eighty".