243366620 has 48 divisors (see below), whose sum is σ = 586584768. Its totient is φ = 83082240.

The previous prime is 243366601. The next prime is 243366677. The reversal of 243366620 is 26663342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30134 + ... + 37346.

It is an arithmetic number, because the mean of its divisors is an integer number (12220516).

Almost surely, 2^243366620 is an apocalyptic number.

243366620 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 243366620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293292384).

243366620 is an abundant number, since it is smaller than the sum of its proper divisors (343218148).

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

243366620 is a wasteful number, since it uses less digits than its factorization.

243366620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470 (or 7468 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 243366620 is about 15600.2121780442. The cubic root of 243366620 is about 624.3388165182.

The spelling of 243366620 in words is "two hundred forty-three million, three hundred sixty-six thousand, six hundred twenty".