243300442 has 16 divisors (see below), whose sum is σ = 455003712. Its totient is φ = 94792320.

The previous prime is 243300427. The next prime is 243300451. The reversal of 243300442 is 244003342.

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 7 ways as a sum of consecutive naturals, for example, 789783 + ... + 790090.

It is an arithmetic number, because the mean of its divisors is an integer number (28437732).

Almost surely, 2^243300442 is an apocalyptic number.

243300442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243300442 is a deficient number, since it is larger than the sum of its proper divisors (211703270).

243300442 is a wasteful number, since it uses less digits than its factorization.

243300442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579893.

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

The square root of 243300442 is about 15598.0909729364. The cubic root of 243300442 is about 624.2822198222.

Adding to 243300442 its reverse (244003342), we get a palindrome (487303784).

The spelling of 243300442 in words is "two hundred forty-three million, three hundred thousand, four hundred forty-two".