243585942 has 16 divisors (see below), whose sum is σ = 491996592. Its totient is φ = 80391200.

The previous prime is 243585931. The next prime is 243585949. The reversal of 243585942 is 249585342.

243585942 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243585942² = 118668222280054728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243585894 and 243585903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243585949) 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, 200373 + ... + 201584.

It is an arithmetic number, because the mean of its divisors is an integer number (30749787).

Almost surely, 2^243585942 is an apocalyptic number.

243585942 is an abundant number, since it is smaller than the sum of its proper divisors (248410650).

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

243585942 is a wasteful number, since it uses less digits than its factorization.

243585942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402063.

The product of its digits is 345600, while the sum is 42.

The square root of 243585942 is about 15607.2400506944. The cubic root of 243585942 is about 624.5263115882.

The spelling of 243585942 in words is "two hundred forty-three million, five hundred eighty-five thousand, nine hundred forty-two".