243050100 has 72 divisors (see below), whose sum is σ = 711204480. Its totient is φ = 64078080.

The previous prime is 243050083. The next prime is 243050161. The reversal of 243050100 is 1050342.

It is a super-2 number, since 2×243050100² = 118146702220020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 243050100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22149 + ... + 31251.

It is an arithmetic number, because the mean of its divisors is an integer number (9877840).

Almost surely, 2^243050100 is an apocalyptic number.

243050100 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 243050100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355602240).

243050100 is an abundant number, since it is smaller than the sum of its proper divisors (468154380).

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

243050100 is a wasteful number, since it uses less digits than its factorization.

243050100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9209 (or 9202 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 243050100 is about 15590.0641435499. The cubic root of 243050100 is about 624.0680296474.

The spelling of 243050100 in words is "two hundred forty-three million, fifty thousand, one hundred".