243669020 has 48 divisors (see below), whose sum is σ = 604981440. Its totient is φ = 80661504.

The previous prime is 243669001. The next prime is 243669059. The reversal of 243669020 is 20966342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25949 + ... + 34068.

It is an arithmetic number, because the mean of its divisors is an integer number (12603780).

Almost surely, 2^243669020 is an apocalyptic number.

243669020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243669020 is an abundant number, since it is smaller than the sum of its proper divisors (361312420).

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

243669020 is a wasteful number, since it uses less digits than its factorization.

243669020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60062 (or 60060 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 243669020 is about 15609.9013449797. The cubic root of 243669020 is about 624.5973043270.

The spelling of 243669020 in words is "two hundred forty-three million, six hundred sixty-nine thousand, twenty".