543540380 has 12 divisors (see below), whose sum is σ = 1141434840. Its totient is φ = 217416144.

The previous prime is 543540379. The next prime is 543540401. The reversal of 543540380 is 83045345.

It is a super-2 number, since 2×543540380² = 590872289381088800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13588490 + ... + 13588529.

It is an arithmetic number, because the mean of its divisors is an integer number (95119570).

Almost surely, 2^543540380 is an apocalyptic number.

It is an amenable number.

543540380 is an abundant number, since it is smaller than the sum of its proper divisors (597894460).

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

543540380 is a wasteful number, since it uses less digits than its factorization.

543540380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27177028 (or 27177026 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 543540380 is about 23313.9524748593. The cubic root of 543540380 is about 816.1010523802.

The spelling of 543540380 in words is "five hundred forty-three million, five hundred forty thousand, three hundred eighty".