242445105 has 48 divisors (see below), whose sum is σ = 482002560. Its totient is φ = 110433024.

The previous prime is 242445097. The next prime is 242445107. The reversal of 242445105 is 501544242.

It is not a de Polignac number, because 242445105 - 2³ = 242445097 is a prime.

It is a super-2 number, since 2×242445105² = 117559257876922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242445107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97366 + ... + 99824.

It is an arithmetic number, because the mean of its divisors is an integer number (10041720).

Almost surely, 2^242445105 is an apocalyptic number.

It is an amenable number.

242445105 is a deficient number, since it is larger than the sum of its proper divisors (239557455).

242445105 is a wasteful number, since it uses less digits than its factorization.

242445105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 242445105 is about 15570.6488304117. The cubic root of 242445105 is about 623.5497939130.

Adding to 242445105 its reverse (501544242), we get a palindrome (743989347).

The spelling of 242445105 in words is "two hundred forty-two million, four hundred forty-five thousand, one hundred five".