543613440 has 80 divisors (see below), whose sum is σ = 1737888768. Its totient is φ = 144961536.

The previous prime is 543613391. The next prime is 543613453. The reversal of 543613440 is 44316345.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 543613398 and 543613407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27712 + ... + 43071.

Almost surely, 2^543613440 is an apocalyptic number.

It is an amenable number.

543613440 is an abundant number, since it is smaller than the sum of its proper divisors (1194275328).

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

543613440 is an equidigital number, since it uses as much as digits as its factorization.

543613440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70809 (or 70793 counting only the distinct ones).

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

The square root of 543613440 is about 23315.5192950961. The cubic root of 543613440 is about 816.1376161596.

Adding to 543613440 its reverse (44316345), we get a palindrome (587929785).

The spelling of 543613440 in words is "five hundred forty-three million, six hundred thirteen thousand, four hundred forty".