243102442 has 8 divisors (see below), whose sum is σ = 397804032. Its totient is φ = 110501100.

The previous prime is 243102421. The next prime is 243102443. The reversal of 243102442 is 244201342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×243102442³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 11050111 = 243102442 / (2 + 4 + 3 + 1 + 0 + 2 + 4 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (243102443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5525034 + ... + 5525077.

It is an arithmetic number, because the mean of its divisors is an integer number (49725504).

Almost surely, 2^243102442 is an apocalyptic number.

243102442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243102442 is a deficient number, since it is larger than the sum of its proper divisors (154701590).

243102442 is a wasteful number, since it uses less digits than its factorization.

243102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050124.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 243102442 is about 15591.7427505715. The cubic root of 243102442 is about 624.1128251090.

Adding to 243102442 its reverse (244201342), we get a palindrome (487303784).

The spelling of 243102442 in words is "two hundred forty-three million, one hundred two thousand, four hundred forty-two".