242051645 has 16 divisors (see below), whose sum is σ = 323612928. Its totient is φ = 172290240.

The previous prime is 242051639. The next prime is 242051647. The reversal of 242051645 is 546150242.

It is not a de Polignac number, because 242051645 - 2⁴ = 242051629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242051647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44234 + ... + 49403.

It is an arithmetic number, because the mean of its divisors is an integer number (20225808).

Almost surely, 2^242051645 is an apocalyptic number.

It is an amenable number.

242051645 is a deficient number, since it is larger than the sum of its proper divisors (81561283).

242051645 is a wasteful number, since it uses less digits than its factorization.

242051645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93700.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 242051645 is about 15558.0090307211. The cubic root of 242051645 is about 623.2122951871.

The spelling of 242051645 in words is "two hundred forty-two million, fifty-one thousand, six hundred forty-five".