243776020 has 24 divisors (see below), whose sum is σ = 512888544. Its totient is φ = 97327776.

The previous prime is 243776003. The next prime is 243776041. The reversal of 243776020 is 20677342.

It is a happy number.

243776020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 202 + ... + 22081.

It is an arithmetic number, because the mean of its divisors is an integer number (21370356).

Almost surely, 2^243776020 is an apocalyptic number.

243776020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243776020 is an abundant number, since it is smaller than the sum of its proper divisors (269112524).

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

243776020 is a wasteful number, since it uses less digits than its factorization.

243776020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22839 (or 22837 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 243776020 is about 15613.3282806710. The cubic root of 243776020 is about 624.6887153888.

The spelling of 243776020 in words is "two hundred forty-three million, seven hundred seventy-six thousand, twenty".