243200856 has 32 divisors (see below), whose sum is σ = 611409600. Its totient is φ = 80612640.

The previous prime is 243200851. The next prime is 243200857. The reversal of 243200856 is 658002342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243200851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24010 + ... + 32601.

It is an arithmetic number, because the mean of its divisors is an integer number (19106550).

Almost surely, 2^243200856 is an apocalyptic number.

It is an amenable number.

243200856 is an abundant number, since it is smaller than the sum of its proper divisors (368208744).

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

243200856 is a wasteful number, since it uses less digits than its factorization.

243200856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56799 (or 56795 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 243200856 is about 15594.8983965911. The cubic root of 243200856 is about 624.1970326179.

The spelling of 243200856 in words is "two hundred forty-three million, two hundred thousand, eight hundred fifty-six".