242505445 has 32 divisors (see below), whose sum is σ = 373750272. Its totient is φ = 146817792.

The previous prime is 242505443. The next prime is 242505451. The reversal of 242505445 is 544505242.

It is a cyclic number.

It is not a de Polignac number, because 242505445 - 2¹ = 242505443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242505443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1122 + ... + 22051.

It is an arithmetic number, because the mean of its divisors is an integer number (11679696).

Almost surely, 2^242505445 is an apocalyptic number.

It is an amenable number.

242505445 is a deficient number, since it is larger than the sum of its proper divisors (131244827).

242505445 is a wasteful number, since it uses less digits than its factorization.

242505445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23221.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 242505445 is about 15572.5863298297. The cubic root of 242505445 is about 623.6015195378.

The spelling of 242505445 in words is "two hundred forty-two million, five hundred five thousand, four hundred forty-five".