242572646 has 32 divisors (see below), whose sum is σ = 390549600. Its totient is φ = 112779520.

The previous prime is 242572637. The next prime is 242572669. The reversal of 242572646 is 646275242.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 196760 + ... + 197988.

It is an arithmetic number, because the mean of its divisors is an integer number (12204675).

Almost surely, 2^242572646 is an apocalyptic number.

242572646 is a deficient number, since it is larger than the sum of its proper divisors (147976954).

242572646 is a wasteful number, since it uses less digits than its factorization.

242572646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384.

The product of its digits is 161280, while the sum is 38.

The square root of 242572646 is about 15574.7438502211. The cubic root of 242572646 is about 623.6591165612.

The spelling of 242572646 in words is "two hundred forty-two million, five hundred seventy-two thousand, six hundred forty-six".