243790980 has 24 divisors (see below), whose sum is σ = 682614912. Its totient is φ = 65010912.

The previous prime is 243790979. The next prime is 243790997. The reversal of 243790980 is 89097342.

243790980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2031532 + ... + 2031651.

It is an arithmetic number, because the mean of its divisors is an integer number (28442288).

Almost surely, 2^243790980 is an apocalyptic number.

243790980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243790980 is an abundant number, since it is smaller than the sum of its proper divisors (438823932).

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

243790980 is a wasteful number, since it uses less digits than its factorization.

243790980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063195 (or 4063193 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 243790980 is about 15613.8073511876. The cubic root of 243790980 is about 624.7014937198.

The spelling of 243790980 in words is "two hundred forty-three million, seven hundred ninety thousand, nine hundred eighty".