543260640 has 288 divisors, whose sum is σ = 1913629536. Its totient is φ = 129392640.

The previous prime is 543260629. The next prime is 543260659. The reversal of 543260640 is 46062345.

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

It is a junction number, because it is equal to n+sod(n) for n = 543260598 and 543260607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3001350 + ... + 3001530.

It is an arithmetic number, because the mean of its divisors is an integer number (6644547).

Almost surely, 2^543260640 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 543260640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956814768).

543260640 is an abundant number, since it is smaller than the sum of its proper divisors (1370368896).

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

543260640 is a wasteful number, since it uses less digits than its factorization.

543260640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 543260640 is about 23307.9522910100. The cubic root of 543260640 is about 815.9610227442.

The spelling of 543260640 in words is "five hundred forty-three million, two hundred sixty thousand, six hundred forty".