243242700 has 36 divisors (see below), whose sum is σ = 703783080. Its totient is φ = 64864640.

The previous prime is 243242689. The next prime is 243242707. The reversal of 243242700 is 7242342.

It is a super-2 number, since 2×243242700² = 118334022206580000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243242707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405105 + ... + 405704.

It is an arithmetic number, because the mean of its divisors is an integer number (19549530).

Almost surely, 2^243242700 is an apocalyptic number.

243242700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243242700 is an abundant number, since it is smaller than the sum of its proper divisors (460540380).

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

243242700 is a wasteful number, since it uses less digits than its factorization.

243242700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810826 (or 810819 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 243242700 is about 15596.2399314707. The cubic root of 243242700 is about 624.2328293707.

The spelling of 243242700 in words is "two hundred forty-three million, two hundred forty-two thousand, seven hundred".