543397920 has 96 divisors (see below), whose sum is σ = 1843394112. Its totient is φ = 133757952.

The previous prime is 543397919. The next prime is 543397927. The reversal of 543397920 is 29793345.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (543397927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37302 + ... + 49781.

It is an arithmetic number, because the mean of its divisors is an integer number (19202022).

Almost surely, 2^543397920 is an apocalyptic number.

It is an amenable number.

543397920 is an abundant number, since it is smaller than the sum of its proper divisors (1299996192).

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

543397920 is a wasteful number, since it uses less digits than its factorization.

543397920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87114 (or 87106 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 543397920 is about 23310.8970226373. The cubic root of 543397920 is about 816.0297470893.

The spelling of 543397920 in words is "five hundred forty-three million, three hundred ninety-seven thousand, nine hundred twenty".