243023242 has 48 divisors (see below), whose sum is σ = 470564640. Its totient is φ = 93055200.

The previous prime is 243023213. The next prime is 243023251. The reversal of 243023242 is 242320342.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 61692 + ... + 65512.

It is an arithmetic number, because the mean of its divisors is an integer number (9803430).

Almost surely, 2^243023242 is an apocalyptic number.

243023242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243023242 is a deficient number, since it is larger than the sum of its proper divisors (227541398).

243023242 is a wasteful number, since it uses less digits than its factorization.

243023242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3900 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 243023242 is about 15589.2027377926. The cubic root of 243023242 is about 624.0450414699.

Adding to 243023242 its reverse (242320342), we get a palindrome (485343584).

The spelling of 243023242 in words is "two hundred forty-three million, twenty-three thousand, two hundred forty-two".