243081480 has 128 divisors (see below), whose sum is σ = 787449600. Its totient is φ = 59845632.

The previous prime is 243081467. The next prime is 243081491. The reversal of 243081480 is 84180342.

It is a super-3 number, since 3×243081480³ (a number of 26 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78522 + ... + 81558.

It is an arithmetic number, because the mean of its divisors is an integer number (6151950).

Almost surely, 2^243081480 is an apocalyptic number.

243081480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243081480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393724800).

243081480 is an abundant number, since it is smaller than the sum of its proper divisors (544368120).

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

243081480 is a wasteful number, since it uses less digits than its factorization.

243081480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 243081480 is about 15591.0705212952. The cubic root of 243081480 is about 624.0948861296.

The spelling of 243081480 in words is "two hundred forty-three million, eighty-one thousand, four hundred eighty".